docs: add companies frontmatter, schema, and rendering in badges & appendix pages

2026-11-02 13:12:44 +00:00 · 2026-10-14 15:52:02 -04:00
1 parent c753937852
commit f6c580b14b
@@ -2,6 +2,7 @@ import { defineConfig } from "blume";
 import type { StandardSchema } from "blume/core/standard-schema.ts";
 import { filesystem } from "blume/sources";
 import { APPENDIX } from "./appendix";
+import { RECENCY, type Company } from "./companies";
 import redirects from "./redirects";

 // Blume's defaults (`inter`, `ibm-plex-mono`) are fetched from fonts.gstatic.com
@@ -33,13 +34,14 @@ const plexMono = {
 };

 /**
- * Custom frontmatter, rendered as the badge row by
+ * Custom frontmatter, rendered between the description and the body by
 * components/ProblemBadges.astro. Problem pages: `topics:` is LeetCode's topic
- * tags and `issue:` the problem's GitHub issue URL (both written by
- * apps/cli/sync.ts), `video:` the NeetCode walkthrough's
- * YouTube id (apps/cli/videos.ts). Blume rejects undeclared keys and takes
- * any Standard Schema; these are hand-rolled so the docs workspace needs no
- * zod. All optional — every other page carries none.
+ * tags, `issue:` the problem's GitHub issue URL and `companies:` the companies
+ * that asked it in the last six months (`companies.ts`; the table under the
+ * badge row) — all three written by apps/cli/sync.ts — and `video:` the
+ * NeetCode walkthrough's YouTube id (apps/cli/videos.ts). Blume rejects
+ * undeclared keys and takes any Standard Schema; these are hand-rolled so the
+ * docs workspace needs no zod. All optional — every other page carries none.
 */
 const optional = <T>(
  message: string,
@@ -74,6 +76,17 @@ const issueSchema = optional(
    typeof value === "string" &&
    /^https:\/\/github\.com\/[\w.-]+\/[\w.-]+\/issues\/\d+$/.test(value),
 );
+const companiesSchema = optional(
+  `expected a list of { name, period, frequency } with period one of ${RECENCY.join(" | ")}`,
+  (value): value is Company[] =>
+    Array.isArray(value) &&
+    value.every(
+      (c) =>
+        typeof c?.name === "string" &&
+        RECENCY.includes(c?.period) &&
+        typeof c?.frequency === "number",
+    ),
+);

 export default defineConfig({
  title: "prdlk",
@@ -102,6 +115,7 @@ export default defineConfig({
      topics: topicsSchema,
      video: videoSchema,
      issue: issueSchema,
+      companies: companiesSchema,
    },
  },
  seo: {
@@ -0,0 +1,36 @@
+/**
+ * The `companies:` frontmatter vocabulary, shared by its writer
+ * (`apps/cli/sync.ts`, from the local DuckDB company-frequency database), its
+ * schema (`blume.config.ts`) and its two readers: the company table under a
+ * problem page's badge row (`components/ProblemBadges.astro`) and the
+ * Companies section of the Appendix (`pages/appendix.astro`), where each
+ * company's card — anchored at `companyHref()` — lists the problems it asked.
+ * Plain data, no Astro imports: sync imports this file under Bun.
+ */
+
+/** The database's recency windows, most recent first; they nest, so a company is filed under the first it appears in. */
+export const RECENCY = ["Thirty Days", "Three Months", "Six Months"] as const;
+export type Recency = (typeof RECENCY)[number];
+
+/** Read under an "Asked within" heading (the company table) or as a row chip (the Appendix card). */
+export const RECENCY_LABEL: Record<Recency, string> = {
+  "Thirty Days": "30 days",
+  "Three Months": "3 months",
+  "Six Months": "6 months",
+};
+
+export interface Company {
+  name: string;
+  /** The most recent window the company asked the problem in. */
+  period: Recency;
+  /** 5–100, relative within the company and window: 100 is its most-asked problem there. */
+  frequency: number;
+}
+
+/** The company's card on the Appendix; `company-` keeps it clear of the tag cards' `#<slug>` ids. */
+export function companyHref(name: string): string {
+  return `/appendix#company-${name
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-|-$/g, "")}`;
+}
@@ -1,6 +1,7 @@
 ---
 /**
- * The MDX `wrapper`: the badge row between a page's description and its body.
+ * The MDX `wrapper`: the badge row (and, below it, the company table) between
+ * a page's description and its body.
 * Blume's page template renders the title and description itself and then
 * the MDX content, with no slot in between, so wrapping the content is the
 * only way to land right after the description. MDX hands a wrapper no
@@ -26,12 +27,19 @@
 * - `issue:` (problem pages, written by sync) is the problem's GitHub issue
 *   URL, a neutral "Issue #N" badge with the GitHub mark, right after
 *   "Explanation" at the end of the row.
+ * - `companies:` (problem pages, written by sync; `companies.ts`) is the
+ *   companies that asked the problem in the last six months, a table laid
+ *   out like Blume's TypeTable under the badge row: each company a pill
+ *   linking to its card in the Appendix's Companies section, the most recent
+ *   window it asked in, and its frequency there (relative within that
+ *   company and window, so a bar of 100 is its most-asked problem).
 */
 import { getEntry } from "astro:content";
 import data from "blume:data";
 import Badge from "blume/components/content/Badge.astro";
 import { stripBase, withBase } from "blume/components/islands/base-path.ts";
 import { APPENDIX } from "../appendix.ts";
+import { RECENCY_LABEL, companyHref, type Company } from "../companies.ts";
 import { tagColors } from "../lib/tag-colors.ts";
 import { TOPIC_LANDINGS, tagTarget, type TopicTag } from "../topic-landings.ts";

@@ -46,6 +54,7 @@ const entry = at ? await getEntry(at.collection, at.entryId) : undefined;
 const tags: TopicTag[] = entry?.data.topics ?? [];
 const video: string | undefined = entry?.data.video;
 const issue: string | undefined = entry?.data.issue;
+const companies: Company[] = entry?.data.companies ?? [];

 const served = new Set<string>(data.routes.map((r: { path: string }) => r.path));

@@ -96,6 +105,8 @@ const badges = tags.map((tag) => {
 });

 const linkClass = "no-underline transition-opacity hover:opacity-80";
+// TypeTable's column track, so the header and every row align.
+const columns = "grid grid-cols-[2fr_1fr_auto] items-center gap-4";
 ---

 {
@@ -131,4 +142,34 @@ const linkClass = "no-underline transition-opacity hover:opacity-80";
  )
 }

+{
+  companies.length > 0 && (
+    <div class="not-prose mb-6 rounded-blume border border-border bg-muted/30 p-1.5" data-blume-narration="skip">
+      <div class={`${columns} px-3 py-2 font-medium text-muted-foreground text-xs`}>
+        <span>Company</span>
+        <span>Asked within</span>
+        <span title="Relative within the company and window: 100 is its most-asked problem there">Frequency</span>
+      </div>
+      <div class="mt-1 flex flex-col">
+        {companies.map((c) => (
+          <div class={`${columns} border-border border-t px-3 py-2 text-xs`}>
+            <a href={withBase(companyHref(c.name))} class={linkClass}>
+              <Badge icon="building-2" shape="pill" stroke>
+                {c.name}
+              </Badge>
+            </a>
+            <span class="whitespace-nowrap text-foreground">{RECENCY_LABEL[c.period]}</span>
+            <span class="flex items-center gap-2">
+              <span class="h-1.5 w-16 overflow-hidden rounded-full bg-muted" aria-hidden="true">
+                <span class="block h-full rounded-full bg-accent" style={`width: ${c.frequency}%`} />
+              </span>
+              <code class="w-8 text-right font-mono text-foreground tabular-nums">{Math.round(c.frequency)}</code>
+            </span>
+          </div>
+        ))}
+      </div>
+    </div>
+  )
+}
+
 <slot />
@@ -7,6 +7,13 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "nIVW4P8b1VA"
 issue: "https://github.com/prdlk/leetcode/issues/62"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 40.6 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Find Minimum in Rotated Sorted Array'
  badge: 'Medium'
@@ -6,6 +6,15 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Binary Search", slug: "binary-search" }
 issue: "https://github.com/prdlk/leetcode/issues/64"
+companies:
+  - { name: "Infosys", period: "Thirty Days", frequency: 68.6 }
+  - { name: "tcs", period: "Thirty Days", frequency: 67.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Meta", period: "Three Months", frequency: 54.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Uber", period: "Six Months", frequency: 67.2 }
 sidebar:
  label: 'Find Peak Element'
  badge: 'Medium'
@@ -7,6 +7,18 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "U8XENwh8Oy8"
 issue: "https://github.com/prdlk/leetcode/issues/60"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "Oracle", period: "Three Months", frequency: 100 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 68.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "TikTok", period: "Six Months", frequency: 64.9 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 63.3 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 53.1 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
 sidebar:
  label: 'Search in Rotated Sorted Array'
  badge: 'Medium'
@@ -6,6 +6,17 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Binary Search", slug: "binary-search" }
 issue: "https://github.com/prdlk/leetcode/issues/65"
+companies:
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "TikTok", period: "Three Months", frequency: 70.9 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Instacart", period: "Six Months", frequency: 100 }
+  - { name: "Apple", period: "Six Months", frequency: 70.2 }
+  - { name: "Infosys", period: "Six Months", frequency: 56.2 }
 sidebar:
  label: 'Find First and Last Position of Element in Sorted Array'
  badge: 'Medium'
@@ -7,6 +7,15 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "K-RYzDZkzCI"
 issue: "https://github.com/prdlk/leetcode/issues/63"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Grammarly", period: "Three Months", frequency: 84.8 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Infosys", period: "Six Months", frequency: 56.2 }
 sidebar:
  label: 'Search Insert Position'
  badge: 'Easy'
@@ -7,6 +7,19 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
  - { name: "Divide and Conquer", slug: "divide-and-conquer" }
 issue: "https://github.com/prdlk/leetcode/issues/66"
+companies:
+  - { name: "Rippling", period: "Thirty Days", frequency: 93 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 62 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "eBay", period: "Three Months", frequency: 82.2 }
+  - { name: "Goldman Sachs", period: "Three Months", frequency: 57 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Zoho", period: "Six Months", frequency: 79.6 }
+  - { name: "DE Shaw", period: "Six Months", frequency: 74.2 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
 sidebar:
  label: 'Median of Two Sorted Arrays'
  badge: 'Hard'
@@ -7,6 +7,12 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "s4DPM8ct1pI"
 issue: "https://github.com/prdlk/leetcode/issues/58"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 53.2 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 39.1 }
 sidebar:
  label: 'Binary Search'
  badge: 'Easy'
@@ -8,6 +8,15 @@ topics:
  - { name: "Matrix", slug: "matrix" }
 video: "Ber2pi2C0j0"
 issue: "https://github.com/prdlk/leetcode/issues/61"
+companies:
+  - { name: "Goldman Sachs", period: "Thirty Days", frequency: 62.9 }
+  - { name: "Microsoft", period: "Three Months", frequency: 57.2 }
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "SAP", period: "Six Months", frequency: 100 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Search a 2D Matrix'
  badge: 'Medium'
@@ -7,6 +7,18 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "U2SozAs9RzA"
 issue: "https://github.com/prdlk/leetcode/issues/59"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Nvidia", period: "Three Months", frequency: 100 }
+  - { name: "Infosys", period: "Three Months", frequency: 87.4 }
+  - { name: "Meta", period: "Three Months", frequency: 62.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Coupang", period: "Six Months", frequency: 100 }
+  - { name: "Swiggy", period: "Six Months", frequency: 100 }
+  - { name: "Accenture", period: "Six Months", frequency: 75 }
+  - { name: "Microsoft", period: "Six Months", frequency: 56.9 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
 sidebar:
  label: 'Koko Eating Bananas'
  badge: 'Medium'
@@ -7,6 +7,18 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "Union-Find", slug: "union-find" }
 issue: "https://github.com/prdlk/leetcode/issues/34"
+companies:
+  - { name: "tcs", period: "Thirty Days", frequency: 74.3 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 65.8 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 53.2 }
+  - { name: "Apple", period: "Three Months", frequency: 69 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Paytm", period: "Six Months", frequency: 100 }
+  - { name: "Nvidia", period: "Six Months", frequency: 91.1 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
+  - { name: "Salesforce", period: "Six Months", frequency: 50.2 }
 sidebar:
  label: 'Longest Consecutive Sequence'
  badge: 'Medium'
@@ -5,6 +5,10 @@ icon: dot
 topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "String", slug: "string" }
+companies:
+  - { name: "Bloomberg", period: "Six Months", frequency: 34.2 }
+  - { name: "Amazon", period: "Six Months", frequency: 14.3 }
+  - { name: "Google", period: "Six Months", frequency: 11.8 }
 sidebar:
  label: 'Check if the Sentence Is Pangram'
  badge: 'Easy'
@@ -7,6 +7,35 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
 video: "KLlXCFG5TnA"
 issue: "https://github.com/prdlk/leetcode/issues/29"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 100 }
+  - { name: "Google", period: "Thirty Days", frequency: 100 }
+  - { name: "Meta", period: "Thirty Days", frequency: 100 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 100 }
+  - { name: "tcs", period: "Thirty Days", frequency: 79.6 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 76.7 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Infosys", period: "Thirty Days", frequency: 68.6 }
+  - { name: "Altimetrik", period: "Three Months", frequency: 100 }
+  - { name: "Capgemini", period: "Three Months", frequency: 100 }
+  - { name: "Microstrategy", period: "Three Months", frequency: 100 }
+  - { name: "MongoDB", period: "Three Months", frequency: 100 }
+  - { name: "Cognizant", period: "Three Months", frequency: 88.7 }
+  - { name: "Apple", period: "Three Months", frequency: 80.4 }
+  - { name: "Barclays", period: "Six Months", frequency: 100 }
+  - { name: "Cisco", period: "Six Months", frequency: 100 }
+  - { name: "Deloitte", period: "Six Months", frequency: 100 }
+  - { name: "Expedia", period: "Six Months", frequency: 100 }
+  - { name: "NetApp", period: "Six Months", frequency: 100 }
+  - { name: "Samsung", period: "Six Months", frequency: 100 }
+  - { name: "Sony", period: "Six Months", frequency: 100 }
+  - { name: "Oracle", period: "Six Months", frequency: 91.2 }
+  - { name: "Qualcomm", period: "Six Months", frequency: 80.7 }
+  - { name: "IBM", period: "Six Months", frequency: 77.2 }
+  - { name: "eBay", period: "Six Months", frequency: 75.2 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "Flipkart", period: "Six Months", frequency: 57.1 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
 sidebar:
  label: 'Two Sum'
  badge: 'Easy'
@@ -6,6 +6,13 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "String", slug: "string" }
 issue: "https://github.com/prdlk/leetcode/issues/33"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
 sidebar:
  label: 'Isomorphic Strings'
  badge: 'Easy'
@@ -8,6 +8,12 @@ topics:
  - { name: "Sorting", slug: "sorting" }
 video: "3OamzN90kPg"
 issue: "https://github.com/prdlk/leetcode/issues/27"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
 sidebar:
  label: 'Contains Duplicate'
  badge: 'Easy'
@@ -8,6 +8,16 @@ topics:
  - { name: "Sorting", slug: "sorting" }
 video: "9UtInBqnCgA"
 issue: "https://github.com/prdlk/leetcode/issues/28"
+companies:
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 53.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "IBM", period: "Three Months", frequency: 100 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 64.4 }
+  - { name: "Meta", period: "Three Months", frequency: 58.9 }
+  - { name: "Deloitte", period: "Six Months", frequency: 81 }
 sidebar:
  label: 'Valid Anagram'
  badge: 'Easy'
@@ -6,6 +6,10 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "String", slug: "string" }
 issue: "https://github.com/prdlk/leetcode/issues/35"
+companies:
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
+  - { name: "Amazon", period: "Six Months", frequency: 20.9 }
 sidebar:
  label: 'Word Pattern'
  badge: 'Easy'
@@ -13,6 +13,23 @@ topics:
  - { name: "Quickselect", slug: "quickselect" }
 video: "YPTqKIgVk-k"
 issue: "https://github.com/prdlk/leetcode/issues/31"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 72.9 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Snap", period: "Six Months", frequency: 100 }
+  - { name: "SoFi", period: "Six Months", frequency: 100 }
+  - { name: "PayPal", period: "Six Months", frequency: 88.4 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 81.4 }
+  - { name: "Nvidia", period: "Six Months", frequency: 78.7 }
+  - { name: "eBay", period: "Six Months", frequency: 75.2 }
+  - { name: "Visa", period: "Six Months", frequency: 69.7 }
+  - { name: "Snowflake", period: "Six Months", frequency: 58.7 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
+  - { name: "Meta", period: "Six Months", frequency: 50.6 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
 sidebar:
  label: 'Top K Frequent Elements'
  badge: 'Medium'
@@ -8,6 +8,16 @@ topics:
  - { name: "Queue", slug: "queue" }
  - { name: "Counting", slug: "counting" }
 video: "rBENYgWy3xU"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Yandex", period: "Three Months", frequency: 76.1 }
+  - { name: "tcs", period: "Three Months", frequency: 73.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "EPAM Systems", period: "Six Months", frequency: 76.2 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 59 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'First Unique Character in a String'
  badge: 'Easy'
@@ -10,6 +10,12 @@ topics:
  - { name: "Bucket Sort", slug: "bucket-sort" }
  - { name: "Counting", slug: "counting" }
 video: "OXdXc9HTrIg"
+companies:
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Amazon", period: "Six Months", frequency: 20.9 }
 sidebar:
  label: 'Sort Characters By Frequency'
  badge: 'Medium'
@@ -9,6 +9,31 @@ topics:
  - { name: "Sorting", slug: "sorting" }
 video: "vzdNOK2oB2E"
 issue: "https://github.com/prdlk/leetcode/issues/30"
+companies:
+  - { name: "Apple", period: "Thirty Days", frequency: 100 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 78.4 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 76.7 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "CrowdStrike", period: "Three Months", frequency: 100 }
+  - { name: "Deloitte", period: "Three Months", frequency: 100 }
+  - { name: "HashedIn", period: "Three Months", frequency: 100 }
+  - { name: "Smartsheet", period: "Three Months", frequency: 100 }
+  - { name: "Walmart Labs", period: "Three Months", frequency: 100 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Expedia", period: "Six Months", frequency: 100 }
+  - { name: "Wipro", period: "Six Months", frequency: 100 }
+  - { name: "Adobe", period: "Six Months", frequency: 93.7 }
+  - { name: "Zoho", period: "Six Months", frequency: 79.6 }
+  - { name: "Nvidia", period: "Six Months", frequency: 78.7 }
+  - { name: "Oracle", period: "Six Months", frequency: 78.7 }
+  - { name: "EPAM Systems", period: "Six Months", frequency: 76.2 }
+  - { name: "Palo Alto Networks", period: "Six Months", frequency: 75.9 }
+  - { name: "Visa", period: "Six Months", frequency: 69.7 }
+  - { name: "Infosys", period: "Six Months", frequency: 67.9 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 53.1 }
 sidebar:
  label: 'Group Anagrams'
  badge: 'Medium'
@@ -8,6 +8,13 @@ topics:
  - { name: "Stack", slug: "stack" }
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
 issue: "https://github.com/prdlk/leetcode/issues/74"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 46.6 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 59.7 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
 sidebar:
  label: 'Next Greater Element I'
  badge: 'Easy'
@@ -8,6 +8,16 @@ topics:
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
 video: "cTBiBSnjO3c"
 issue: "https://github.com/prdlk/leetcode/issues/72"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Chime", period: "Three Months", frequency: 100 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 59.7 }
+  - { name: "Amazon", period: "Three Months", frequency: 42.8 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Anduril", period: "Six Months", frequency: 92.8 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
+  - { name: "Microsoft", period: "Six Months", frequency: 42.5 }
 sidebar:
  label: 'Daily Temperatures'
  badge: 'Medium'
@@ -8,6 +8,14 @@ topics:
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
  - { name: "Range Minimum/Maximum Query", slug: "range-minimum-maximum-query" }
 issue: "https://github.com/prdlk/leetcode/issues/76"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Accenture", period: "Three Months", frequency: 88.6 }
+  - { name: "tcs", period: "Three Months", frequency: 73.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
 sidebar:
  label: 'Largest Rectangle in Histogram'
  badge: 'Hard'
@@ -9,6 +9,9 @@ topics:
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
 video: "Pr6T-3yB9RM"
 issue: "https://github.com/prdlk/leetcode/issues/73"
+companies:
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Amazon", period: "Six Months", frequency: 26 }
 sidebar:
  label: 'Car Fleet'
  badge: 'Medium'
@@ -8,6 +8,11 @@ topics:
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
  - { name: "Data Stream", slug: "data-stream" }
 issue: "https://github.com/prdlk/leetcode/issues/75"
+companies:
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Amazon", period: "Six Months", frequency: 26 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Online Stock Span'
  badge: 'Medium'
@@ -7,6 +7,14 @@ topics:
  - { name: "Prefix Sum", slug: "prefix-sum" }
 video: "bNvIQI2wAjk"
 issue: "https://github.com/prdlk/leetcode/issues/37"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 70.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 61.3 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 59.7 }
+  - { name: "Asana", period: "Six Months", frequency: 100 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
 sidebar:
  label: 'Product of Array Except Self'
  badge: 'Medium'
@@ -8,6 +8,11 @@ topics:
  - { name: "Prefix Sum", slug: "prefix-sum" }
 video: "2pndAmo_sMA"
 issue: "https://github.com/prdlk/leetcode/issues/36"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Range Sum Query - Immutable'
  badge: 'Easy'
@@ -7,6 +7,14 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "Prefix Sum", slug: "prefix-sum" }
 issue: "https://github.com/prdlk/leetcode/issues/39"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Cisco", period: "Three Months", frequency: 100 }
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Akamai", period: "Six Months", frequency: 100 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 40.6 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'Contiguous Array'
  badge: 'Medium'
@@ -8,6 +8,21 @@ topics:
  - { name: "Prefix Sum", slug: "prefix-sum" }
 video: "fFVZt-6sgyo"
 issue: "https://github.com/prdlk/leetcode/issues/38"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Visa", period: "Three Months", frequency: 80.9 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 74.8 }
+  - { name: "Salesforce", period: "Three Months", frequency: 64.7 }
+  - { name: "Amazon", period: "Three Months", frequency: 57.1 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Accenture", period: "Six Months", frequency: 100 }
+  - { name: "IBM", period: "Six Months", frequency: 94.5 }
+  - { name: "Infosys", period: "Six Months", frequency: 76.3 }
+  - { name: "Apple", period: "Six Months", frequency: 74.7 }
+  - { name: "josh technology", period: "Six Months", frequency: 74 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "Yandex", period: "Six Months", frequency: 69.2 }
 sidebar:
  label: 'Subarray Sum Equals K'
  badge: 'Medium'
@@ -7,6 +7,12 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "Prefix Sum", slug: "prefix-sum" }
 issue: "https://github.com/prdlk/leetcode/issues/40"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "TikTok", period: "Three Months", frequency: 70.9 }
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Subarray Sums Divisible by K'
  badge: 'Medium'
@@ -8,6 +8,17 @@ topics:
  - { name: "Sliding Window", slug: "sliding-window" }
  - { name: "Prefix Sum", slug: "prefix-sum" }
 issue: "https://github.com/prdlk/leetcode/issues/56"
+companies:
+  - { name: "EPAM Systems", period: "Thirty Days", frequency: 89.8 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Tekion", period: "Three Months", frequency: 100 }
+  - { name: "DE Shaw", period: "Three Months", frequency: 80.2 }
+  - { name: "Google", period: "Three Months", frequency: 38.7 }
+  - { name: "Infosys", period: "Six Months", frequency: 67.9 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
+  - { name: "Microsoft", period: "Six Months", frequency: 42.5 }
 sidebar:
  label: 'Max Consecutive Ones III'
  badge: 'Medium'
@@ -7,6 +7,26 @@ topics:
  - { name: "Dynamic Programming", slug: "dynamic-programming" }
 video: "1pkOgXD63yU"
 issue: "https://github.com/prdlk/leetcode/issues/50"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Infosys", period: "Thirty Days", frequency: 80.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 65.3 }
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Atlassian", period: "Three Months", frequency: 100 }
+  - { name: "Media.net", period: "Three Months", frequency: 100 }
+  - { name: "Nvidia", period: "Three Months", frequency: 87.7 }
+  - { name: "Meta", period: "Three Months", frequency: 70.4 }
+  - { name: "Apple", period: "Three Months", frequency: 69 }
+  - { name: "Microsoft", period: "Three Months", frequency: 60.5 }
+  - { name: "Mastercard", period: "Six Months", frequency: 79 }
+  - { name: "Accenture", period: "Six Months", frequency: 75 }
+  - { name: "Adobe", period: "Six Months", frequency: 74.3 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "IBM", period: "Six Months", frequency: 70.1 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 53.1 }
 sidebar:
  label: 'Best Time to Buy and Sell Stock'
  badge: 'Easy'
@@ -8,6 +8,12 @@ topics:
  - { name: "Sliding Window", slug: "sliding-window" }
  - { name: "Prefix Sum", slug: "prefix-sum" }
 issue: "https://github.com/prdlk/leetcode/issues/54"
+companies:
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Google", period: "Three Months", frequency: 45 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
 sidebar:
  label: 'Minimum Size Subarray Sum'
  badge: 'Medium'
@@ -8,6 +8,35 @@ topics:
  - { name: "Sliding Window", slug: "sliding-window" }
 video: "wiGpQwVHdE0"
 issue: "https://github.com/prdlk/leetcode/issues/51"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 100 }
+  - { name: "Visa", period: "Thirty Days", frequency: 100 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 84.9 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 75.6 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 63.7 }
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Cognizant", period: "Three Months", frequency: 100 }
+  - { name: "Optum", period: "Three Months", frequency: 100 }
+  - { name: "Spotify", period: "Three Months", frequency: 100 }
+  - { name: "Deloitte", period: "Three Months", frequency: 89.1 }
+  - { name: "Infosys", period: "Three Months", frequency: 87.4 }
+  - { name: "Apple", period: "Three Months", frequency: 69 }
+  - { name: "Goldman Sachs", period: "Three Months", frequency: 66.3 }
+  - { name: "Media.net", period: "Six Months", frequency: 100 }
+  - { name: "Wipro", period: "Six Months", frequency: 100 }
+  - { name: "Wissen Technology", period: "Six Months", frequency: 100 }
+  - { name: "Zoho", period: "Six Months", frequency: 100 }
+  - { name: "Qualcomm", period: "Six Months", frequency: 92 }
+  - { name: "Turing", period: "Six Months", frequency: 89 }
+  - { name: "EPAM Systems", period: "Six Months", frequency: 86.7 }
+  - { name: "Netflix", period: "Six Months", frequency: 83.1 }
+  - { name: "Tesla", period: "Six Months", frequency: 80.9 }
+  - { name: "Yandex", period: "Six Months", frequency: 69.2 }
+  - { name: "Agoda", period: "Six Months", frequency: 65 }
+  - { name: "IBM", period: "Six Months", frequency: 60.1 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
 sidebar:
  label: 'Longest Substring Without Repeating Characters'
  badge: 'Medium'
@@ -8,6 +8,15 @@ topics:
  - { name: "Sliding Window", slug: "sliding-window" }
 video: "gqXU1UyA8pk"
 issue: "https://github.com/prdlk/leetcode/issues/52"
+companies:
+  - { name: "Zoho", period: "Thirty Days", frequency: 100 }
+  - { name: "Google", period: "Thirty Days", frequency: 46.6 }
+  - { name: "DE Shaw", period: "Three Months", frequency: 91.8 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Longest Repeating Character Replacement'
  badge: 'Medium'
@@ -9,6 +9,14 @@ topics:
  - { name: "Sliding Window", slug: "sliding-window" }
 video: "UbyhOgBN834"
 issue: "https://github.com/prdlk/leetcode/issues/53"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
 sidebar:
  label: 'Permutation in String'
  badge: 'Medium'
@@ -6,6 +6,13 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Sliding Window", slug: "sliding-window" }
 issue: "https://github.com/prdlk/leetcode/issues/55"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 55.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Maximum Average Subarray I'
  badge: 'Easy'
@@ -7,6 +7,15 @@ topics:
  - { name: "String", slug: "string" }
  - { name: "Sliding Window", slug: "sliding-window" }
 issue: "https://github.com/prdlk/leetcode/issues/57"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 55.9 }
+  - { name: "Lyft", period: "Three Months", frequency: 93.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Oracle", period: "Six Months", frequency: 78.7 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Minimum Window Substring'
  badge: 'Hard'
@@ -8,6 +8,12 @@ topics:
  - { name: "Stack", slug: "stack" }
 video: "iu0082c4HDE"
 issue: "https://github.com/prdlk/leetcode/issues/69"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
+  - { name: "Meta", period: "Six Months", frequency: 38.7 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Evaluate Reverse Polish Notation'
  badge: 'Medium'
@@ -7,6 +7,15 @@ topics:
  - { name: "Design", slug: "design" }
 video: "qkLl7nAwDPo"
 issue: "https://github.com/prdlk/leetcode/issues/68"
+companies:
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Google", period: "Three Months", frequency: 28.8 }
+  - { name: "Odoo", period: "Six Months", frequency: 100 }
+  - { name: "UiPath", period: "Six Months", frequency: 100 }
+  - { name: "Infosys", period: "Six Months", frequency: 67.9 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 45.6 }
 sidebar:
  label: 'Min Stack'
  badge: 'Medium'
@@ -8,6 +8,24 @@ topics:
  - { name: "Bracket Sequences", slug: "bracket-sequences" }
 video: "WTzjTskDFMg"
 issue: "https://github.com/prdlk/leetcode/issues/67"
+companies:
+  - { name: "BlackRock", period: "Thirty Days", frequency: 100 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 61.3 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Accolite", period: "Three Months", frequency: 100 }
+  - { name: "Intuit", period: "Three Months", frequency: 73.2 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 68.3 }
+  - { name: "Meta", period: "Three Months", frequency: 65.3 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Autodesk", period: "Six Months", frequency: 100 }
+  - { name: "Criteo", period: "Six Months", frequency: 100 }
+  - { name: "Odoo", period: "Six Months", frequency: 100 }
+  - { name: "Tripadvisor", period: "Six Months", frequency: 100 }
+  - { name: "Virtu Financial", period: "Six Months", frequency: 100 }
+  - { name: "IBM", period: "Six Months", frequency: 91.1 }
+  - { name: "Epic Systems", period: "Six Months", frequency: 89.6 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 85.6 }
 sidebar:
  label: 'Valid Parentheses'
  badge: 'Easy'
@@ -8,6 +8,12 @@ topics:
  - { name: "Stack", slug: "stack" }
  - { name: "Recursion", slug: "recursion" }
 issue: "https://github.com/prdlk/leetcode/issues/71"
+companies:
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
 sidebar:
  label: 'Basic Calculator'
  badge: 'Hard'
@@ -6,6 +6,13 @@ topics:
  - { name: "String", slug: "string" }
  - { name: "Stack", slug: "stack" }
 issue: "https://github.com/prdlk/leetcode/issues/70"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Google", period: "Three Months", frequency: 28.8 }
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Snowflake", period: "Six Months", frequency: 58.7 }
+  - { name: "Meta", period: "Six Months", frequency: 50.6 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Simplify Path'
  badge: 'Medium'
@@ -8,6 +8,18 @@ topics:
  - { name: "Greedy", slug: "greedy" }
 video: "UuiTKBwPgAo"
 issue: "https://github.com/prdlk/leetcode/issues/44"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 75.8 }
+  - { name: "Infosys", period: "Thirty Days", frequency: 68.6 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "tcs", period: "Thirty Days", frequency: 67.6 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 62 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Goldman Sachs", period: "Three Months", frequency: 57 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "IBM", period: "Six Months", frequency: 60.1 }
 sidebar:
  label: 'Container With Most Water'
  badge: 'Medium'
@@ -7,6 +7,18 @@ topics:
  - { name: "String", slug: "string" }
 video: "jJXJ16kPFWg"
 issue: "https://github.com/prdlk/leetcode/issues/41"
+companies:
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 79.9 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Deloitte", period: "Six Months", frequency: 81 }
+  - { name: "Cognizant", period: "Six Months", frequency: 76.3 }
+  - { name: "Axon", period: "Six Months", frequency: 75.4 }
+  - { name: "Apple", period: "Six Months", frequency: 64.8 }
 sidebar:
  label: 'Valid Palindrome'
  badge: 'Easy'
@@ -8,6 +8,22 @@ topics:
  - { name: "Sorting", slug: "sorting" }
 video: "jzZsG8n2R9A"
 issue: "https://github.com/prdlk/leetcode/issues/43"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 66.8 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Apple", period: "Three Months", frequency: 80.4 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Cisco", period: "Six Months", frequency: 100 }
+  - { name: "Wissen Technology", period: "Six Months", frequency: 100 }
+  - { name: "eBay", period: "Six Months", frequency: 75.2 }
+  - { name: "Accenture", period: "Six Months", frequency: 75 }
+  - { name: "Visa", period: "Six Months", frequency: 69.7 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 53.1 }
 sidebar:
  label: '3Sum'
  badge: 'Medium'
@@ -8,6 +8,14 @@ topics:
  - { name: "Binary Search", slug: "binary-search" }
 video: "cQ1Oz4ckceM"
 issue: "https://github.com/prdlk/leetcode/issues/42"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 65.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 46.6 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Meta", period: "Three Months", frequency: 54.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Oracle", period: "Six Months", frequency: 78.7 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 40.6 }
 sidebar:
  label: 'Two Sum II - Input Array Is Sorted'
  badge: 'Medium'
@@ -7,6 +7,17 @@ topics:
  - { name: "Math", slug: "math" }
  - { name: "Two Pointers", slug: "two-pointers" }
 issue: "https://github.com/prdlk/leetcode/issues/47"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 46.6 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Meta", period: "Three Months", frequency: 54.8 }
+  - { name: "Box", period: "Six Months", frequency: 100 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
 sidebar:
  label: 'Rotate Array'
  badge: 'Medium'
@@ -6,6 +6,14 @@ topics:
  - { name: "Two Pointers", slug: "two-pointers" }
  - { name: "String", slug: "string" }
 video: "_d0T_2Lk2qA"
+companies:
+  - { name: "tcs", period: "Thirty Days", frequency: 58.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Qualcomm", period: "Six Months", frequency: 80.7 }
 sidebar:
  label: 'Reverse String'
  badge: 'Easy'
@@ -8,6 +8,12 @@ topics:
  - { name: "Dynamic Programming", slug: "dynamic-programming" }
 video: "99RVfqklbCE"
 issue: "https://github.com/prdlk/leetcode/issues/45"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
+  - { name: "Google", period: "Six Months", frequency: 25.4 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Is Subsequence'
  badge: 'Easy'
@@ -9,6 +9,20 @@ topics:
  - { name: "Stack", slug: "stack" }
  - { name: "Monotonic Stack", slug: "monotonic-stack" }
 issue: "https://github.com/prdlk/leetcode/issues/211"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 90.7 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 80.7 }
+  - { name: "Goldman Sachs", period: "Thirty Days", frequency: 71.7 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Infosys", period: "Thirty Days", frequency: 68.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 63.7 }
+  - { name: "Snowflake", period: "Three Months", frequency: 90.3 }
+  - { name: "Meta", period: "Three Months", frequency: 58.9 }
+  - { name: "Microsoft", period: "Three Months", frequency: 57.2 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Docusign", period: "Six Months", frequency: 100 }
+  - { name: "Qualcomm", period: "Six Months", frequency: 80.7 }
+  - { name: "Nvidia", period: "Six Months", frequency: 78.7 }
 sidebar:
  label: 'Trapping Rain Water'
  badge: 'Hard'
@@ -6,6 +6,10 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Two Pointers", slug: "two-pointers" }
 issue: "https://github.com/prdlk/leetcode/issues/48"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Remove Duplicates from Sorted Array II'
  badge: 'Medium'
@@ -8,6 +8,15 @@ topics:
  - { name: "Sorting", slug: "sorting" }
 video: "FPCZsG_AkUg"
 issue: "https://github.com/prdlk/leetcode/issues/46"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Instacart", period: "Three Months", frequency: 100 }
+  - { name: "Uber", period: "Three Months", frequency: 80 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "Amazon", period: "Three Months", frequency: 46 }
+  - { name: "tcs", period: "Six Months", frequency: 60 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
 sidebar:
  label: 'Squares of a Sorted Array'
  badge: 'Easy'
@@ -9,6 +9,35 @@ topics:
  - { name: "Doubly-Linked List", slug: "doubly-linked-list" }
 video: "7ABFKPK2hD4"
 issue: "https://github.com/prdlk/leetcode/issues/87"
+companies:
+  - { name: "NetApp", period: "Thirty Days", frequency: 100 }
+  - { name: "Adobe", period: "Thirty Days", frequency: 83.5 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "TikTok", period: "Three Months", frequency: 100 }
+  - { name: "Palo Alto Networks", period: "Three Months", frequency: 92.8 }
+  - { name: "Apple", period: "Three Months", frequency: 88.5 }
+  - { name: "Goldman Sachs", period: "Three Months", frequency: 66.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 53.2 }
+  - { name: "Airwallex", period: "Six Months", frequency: 100 }
+  - { name: "Docusign", period: "Six Months", frequency: 100 }
+  - { name: "Moloco", period: "Six Months", frequency: 100 }
+  - { name: "Nutanix", period: "Six Months", frequency: 100 }
+  - { name: "Oracle", period: "Six Months", frequency: 100 }
+  - { name: "Twitch", period: "Six Months", frequency: 100 }
+  - { name: "Snap", period: "Six Months", frequency: 92.4 }
+  - { name: "Qualcomm", period: "Six Months", frequency: 92 }
+  - { name: "Nvidia", period: "Six Months", frequency: 91.1 }
+  - { name: "ByteDance", period: "Six Months", frequency: 88.6 }
+  - { name: "MongoDB", period: "Six Months", frequency: 87.7 }
+  - { name: "Expedia", period: "Six Months", frequency: 87.5 }
+  - { name: "eBay", period: "Six Months", frequency: 86.1 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 74.9 }
+  - { name: "Visa", period: "Six Months", frequency: 69.7 }
+  - { name: "Uber", period: "Six Months", frequency: 61.9 }
+  - { name: "Salesforce", period: "Six Months", frequency: 50.2 }
 sidebar:
  label: 'LRU Cache'
  badge: 'Medium'
@@ -8,6 +8,17 @@ topics:
  - { name: "Recursion", slug: "recursion" }
 video: "wgFPrzTjm7s"
 issue: "https://github.com/prdlk/leetcode/issues/88"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 95.8 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 72.8 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Meta", period: "Thirty Days", frequency: 63.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 61.3 }
+  - { name: "EarnIn", period: "Six Months", frequency: 100 }
+  - { name: "Jane Street", period: "Six Months", frequency: 100 }
+  - { name: "Palo Alto Networks", period: "Six Months", frequency: 75.9 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
 sidebar:
  label: 'Add Two Numbers'
  badge: 'Medium'
@@ -9,6 +9,19 @@ topics:
  - { name: "Design", slug: "design" }
  - { name: "Randomized", slug: "randomized" }
 issue: "https://github.com/prdlk/leetcode/issues/90"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Apple", period: "Three Months", frequency: 80.4 }
+  - { name: "Google", period: "Three Months", frequency: 32.7 }
+  - { name: "Axon", period: "Six Months", frequency: 100 }
+  - { name: "Okta", period: "Six Months", frequency: 100 }
+  - { name: "Quora", period: "Six Months", frequency: 100 }
+  - { name: "SoFi", period: "Six Months", frequency: 100 }
+  - { name: "Uber", period: "Six Months", frequency: 61.9 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Insert Delete GetRandom O(1)'
  badge: 'Medium'
@@ -9,6 +9,13 @@ topics:
  - { name: "Floyd's Cycle Finding Algorithm", slug: "floyds-cycle-finding-algorithm" }
 video: "gBTe7lFR3vc"
 issue: "https://github.com/prdlk/leetcode/issues/79"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Nvidia", period: "Three Months", frequency: 87.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Linked List Cycle'
  badge: 'Easy'
@@ -8,6 +8,12 @@ topics:
  - { name: "Stack", slug: "stack" }
  - { name: "Recursion", slug: "recursion" }
 issue: "https://github.com/prdlk/leetcode/issues/81"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
 sidebar:
  label: 'Reorder List'
  badge: 'Medium'
@@ -6,6 +6,12 @@ topics:
  - { name: "Linked List", slug: "linked-list" }
  - { name: "Two Pointers", slug: "two-pointers" }
 issue: "https://github.com/prdlk/leetcode/issues/80"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Amazon", period: "Three Months", frequency: 51.1 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Remove Nth Node From End of List'
  badge: 'Medium'
@@ -7,6 +7,16 @@ topics:
  - { name: "Recursion", slug: "recursion" }
 video: "G0_I-ZF0S38"
 issue: "https://github.com/prdlk/leetcode/issues/77"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Nokia", period: "Three Months", frequency: 100 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "tcs", period: "Three Months", frequency: 57.2 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Apple", period: "Six Months", frequency: 78.4 }
 sidebar:
  label: 'Reverse Linked List'
  badge: 'Easy'
@@ -7,6 +7,13 @@ topics:
  - { name: "Recursion", slug: "recursion" }
 video: "XIdigk956u0"
 issue: "https://github.com/prdlk/leetcode/issues/78"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Accenture", period: "Six Months", frequency: 75 }
 sidebar:
  label: 'Merge Two Sorted Lists'
  badge: 'Easy'
@@ -6,6 +6,11 @@ topics:
  - { name: "Linked List", slug: "linked-list" }
  - { name: "Two Pointers", slug: "two-pointers" }
 issue: "https://github.com/prdlk/leetcode/issues/84"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 34.2 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
 sidebar:
  label: 'Remove Duplicates from Sorted List II'
  badge: 'Medium'
@@ -6,6 +6,13 @@ topics:
  - { name: "Linked List", slug: "linked-list" }
  - { name: "Two Pointers", slug: "two-pointers" }
 issue: "https://github.com/prdlk/leetcode/issues/82"
+companies:
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Meta", period: "Three Months", frequency: 49.8 }
+  - { name: "Amazon", period: "Three Months", frequency: 39.1 }
+  - { name: "IBM", period: "Six Months", frequency: 60.1 }
+  - { name: "Microsoft", period: "Six Months", frequency: 37.9 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Middle of the Linked List'
  badge: 'Easy'
@@ -5,6 +5,11 @@ icon: dot
 topics:
  - { name: "Linked List", slug: "linked-list" }
 issue: "https://github.com/prdlk/leetcode/issues/83"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Google", period: "Three Months", frequency: 28.8 }
 sidebar:
  label: 'Reverse Linked List II'
  badge: 'Medium'
@@ -7,6 +7,14 @@ topics:
  - { name: "Hash Table", slug: "hash-table" }
  - { name: "Matrix", slug: "matrix" }
 issue: "https://github.com/prdlk/leetcode/issues/94"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Apple", period: "Three Months", frequency: 69 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Confluent", period: "Six Months", frequency: 100 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'Valid Sudoku'
  badge: 'Medium'
@@ -8,6 +8,15 @@ topics:
  - { name: "Matrix", slug: "matrix" }
 video: "fMSJSS7eO1w"
 issue: "https://github.com/prdlk/leetcode/issues/91"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Three Months", frequency: 51.1 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Apple", period: "Six Months", frequency: 64.8 }
+  - { name: "Capital One", period: "Six Months", frequency: 64.2 }
+  - { name: "IBM", period: "Six Months", frequency: 60.1 }
 sidebar:
  label: 'Rotate Image'
  badge: 'Medium'
@@ -8,6 +8,17 @@ topics:
  - { name: "Simulation", slug: "simulation" }
 video: "BJnMZNwUk1M"
 issue: "https://github.com/prdlk/leetcode/issues/92"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "Amazon", period: "Three Months", frequency: 46 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Capital One", period: "Six Months", frequency: 73.8 }
+  - { name: "tcs", period: "Six Months", frequency: 69.7 }
+  - { name: "Apple", period: "Six Months", frequency: 64.8 }
+  - { name: "Infosys", period: "Six Months", frequency: 56.2 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
 sidebar:
  label: 'Spiral Matrix'
  badge: 'Medium'
@@ -8,6 +8,13 @@ topics:
  - { name: "Matrix", slug: "matrix" }
 video: "T41rL0L3Pnw"
 issue: "https://github.com/prdlk/leetcode/issues/93"
+companies:
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Amazon", period: "Three Months", frequency: 48.7 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Google", period: "Three Months", frequency: 32.7 }
+  - { name: "tcs", period: "Six Months", frequency: 43.5 }
 sidebar:
  label: 'Set Matrix Zeroes'
  badge: 'Medium'
@@ -9,6 +9,13 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "5LUXSvjmGCw"
 issue: "https://github.com/prdlk/leetcode/issues/112"
+companies:
+  - { name: "tcs", period: "Thirty Days", frequency: 74.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Uber", period: "Six Months", frequency: 71.5 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
 sidebar:
  label: 'Kth Smallest Element in a BST'
  badge: 'Medium'
@@ -11,6 +11,12 @@ topics:
  - { name: "Lowest Common Ancestor", slug: "lowest-common-ancestor" }
 video: "gs2LMfuOR9k"
 issue: "https://github.com/prdlk/leetcode/issues/113"
+companies:
+  - { name: "BlackRock", period: "Thirty Days", frequency: 76.6 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
+  - { name: "Amazon", period: "Six Months", frequency: 30.1 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
+  - { name: "Google", period: "Six Months", frequency: 21.9 }
 sidebar:
  label: 'Lowest Common Ancestor of a Binary Search Tree'
  badge: 'Medium'
@@ -9,6 +9,13 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "s6ATEkipzow"
 issue: "https://github.com/prdlk/leetcode/issues/111"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 76.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 34.6 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
 sidebar:
  label: 'Validate Binary Search Tree'
  badge: 'Medium'
@@ -10,6 +10,18 @@ topics:
  - { name: "Quickselect", slug: "quickselect" }
 video: "XEmy13g1Qxc"
 issue: "https://github.com/prdlk/leetcode/issues/118"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 70.8 }
+  - { name: "Spotify", period: "Three Months", frequency: 90.3 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Google", period: "Three Months", frequency: 32.7 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "IBM", period: "Six Months", frequency: 70.1 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 63.3 }
+  - { name: "Flipkart", period: "Six Months", frequency: 57.1 }
+  - { name: "TikTok", period: "Six Months", frequency: 55.2 }
+  - { name: "Microsoft", period: "Six Months", frequency: 37.9 }
 sidebar:
  label: 'Kth Largest Element in an Array'
  badge: 'Medium'
@@ -10,6 +10,18 @@ topics:
  - { name: "Tournament Sort", slug: "tournament-sort" }
 video: "q5a5OiGbT6Q"
 issue: "https://github.com/prdlk/leetcode/issues/120"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "FreshWorks", period: "Three Months", frequency: 100 }
+  - { name: "Snap", period: "Three Months", frequency: 100 }
+  - { name: "Deloitte", period: "Three Months", frequency: 89.1 }
+  - { name: "Salesforce", period: "Three Months", frequency: 64.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Nvidia", period: "Six Months", frequency: 78.7 }
+  - { name: "Apple", period: "Six Months", frequency: 57.9 }
 sidebar:
  label: 'Merge k Sorted Lists'
  badge: 'Hard'
@@ -13,6 +13,10 @@ topics:
  - { name: "K-D Tree", slug: "k-d-tree" }
 video: "rI2EBUEMfTk"
 issue: "https://github.com/prdlk/leetcode/issues/119"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Meta", period: "Six Months", frequency: 47.3 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'K Closest Points to Origin'
  badge: 'Medium'
@@ -8,6 +8,12 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "6ZnyEApgFYg"
 issue: "https://github.com/prdlk/leetcode/issues/106"
+companies:
+  - { name: "Google", period: "Three Months", frequency: 41 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
 sidebar:
  label: 'Binary Tree Level Order Traversal'
  badge: 'Medium'
@@ -9,6 +9,9 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "7cp5imvDzl4"
 issue: "https://github.com/prdlk/leetcode/issues/108"
+companies:
+  - { name: "josh technology", period: "Six Months", frequency: 74 }
+  - { name: "Google", period: "Six Months", frequency: 11.8 }
 sidebar:
  label: 'Count Good Nodes in Binary Tree'
  badge: 'Medium'
@@ -9,6 +9,13 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "d4zLyf32e3I"
 issue: "https://github.com/prdlk/leetcode/issues/107"
+companies:
+  - { name: "Yandex", period: "Three Months", frequency: 76.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 42.8 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Oracle", period: "Six Months", frequency: 78.7 }
+  - { name: "Meta", period: "Six Months", frequency: 62.3 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'Binary Tree Right Side View'
  badge: 'Medium'
@@ -9,6 +9,14 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "hTM3phVI6YQ"
 issue: "https://github.com/prdlk/leetcode/issues/97"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Maximum Depth of Binary Tree'
  badge: 'Easy'
@@ -9,6 +9,10 @@ topics:
  - { name: "Binary Tree", slug: "binary-tree" }
 video: "OnSn2XEQ4MY"
 issue: "https://github.com/prdlk/leetcode/issues/96"
+companies:
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Invert Binary Tree'
  badge: 'Easy'
@@ -9,6 +9,12 @@ topics:
  - { name: "Binary Lifting", slug: "binary-lifting" }
  - { name: "Lowest Common Ancestor", slug: "lowest-common-ancestor" }
 issue: "https://github.com/prdlk/leetcode/issues/98"
+companies:
+  - { name: "BlackRock", period: "Thirty Days", frequency: 76.6 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 55.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Meta", period: "Six Months", frequency: 56.1 }
 sidebar:
  label: 'Lowest Common Ancestor of a Binary Tree'
  badge: 'Medium'
@@ -9,6 +9,12 @@ topics:
  - { name: "Trie", slug: "trie" }
 video: "oobqoCJlHA0"
 issue: "https://github.com/prdlk/leetcode/issues/127"
+companies:
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Apple", period: "Six Months", frequency: 48.1 }
+  - { name: "Microsoft", period: "Six Months", frequency: 37.9 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 34.2 }
 sidebar:
  label: 'Implement Trie (Prefix Tree)'
  badge: 'Medium'
@@ -9,6 +9,9 @@ topics:
  - { name: "Trie", slug: "trie" }
 video: "BTf05gs_8iU"
 issue: "https://github.com/prdlk/leetcode/issues/128"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Snowflake", period: "Six Months", frequency: 58.7 }
 sidebar:
  label: 'Design Add and Search Words Data Structure'
  badge: 'Medium'
@@ -8,6 +8,15 @@ topics:
  - { name: "Breadth-First Search", slug: "breadth-first-search" }
  - { name: "Bidirectional Search", slug: "bidirectional-search" }
 issue: "https://github.com/prdlk/leetcode/issues/138"
+companies:
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 55.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Apple", period: "Three Months", frequency: 69 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 46.8 }
+  - { name: "Citadel", period: "Six Months", frequency: 88 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 69.8 }
+  - { name: "Meta", period: "Six Months", frequency: 32.7 }
 sidebar:
  label: 'Word Ladder'
  badge: 'Hard'
@@ -7,6 +7,22 @@ topics:
  - { name: "Breadth-First Search", slug: "breadth-first-search" }
  - { name: "Matrix", slug: "matrix" }
 issue: "https://github.com/prdlk/leetcode/issues/137"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 75.8 }
+  - { name: "OpenAI", period: "Thirty Days", frequency: 69.7 }
+  - { name: "Microsoft", period: "Thirty Days", frequency: 57.2 }
+  - { name: "Google", period: "Thirty Days", frequency: 42.3 }
+  - { name: "Anduril", period: "Three Months", frequency: 94.2 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 54 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Cognizant", period: "Six Months", frequency: 76.3 }
+  - { name: "Lyft", period: "Six Months", frequency: 72.2 }
+  - { name: "Flipkart", period: "Six Months", frequency: 57.1 }
+  - { name: "Pinterest", period: "Six Months", frequency: 55.8 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
+  - { name: "Salesforce", period: "Six Months", frequency: 50.2 }
+  - { name: "Uber", period: "Six Months", frequency: 45.7 }
 sidebar:
  label: 'Rotting Oranges'
  badge: 'Medium'
@@ -8,6 +8,10 @@ topics:
  - { name: "Breadth-First Search", slug: "breadth-first-search" }
  - { name: "Graph Theory", slug: "graph" }
 issue: "https://github.com/prdlk/leetcode/issues/131"
+companies:
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Google", period: "Three Months", frequency: 17.3 }
+  - { name: "Meta", period: "Six Months", frequency: 24.5 }
 sidebar:
  label: 'Clone Graph'
  badge: 'Medium'
@@ -9,6 +9,32 @@ topics:
  - { name: "Union-Find", slug: "union-find" }
  - { name: "Matrix", slug: "matrix" }
 issue: "https://github.com/prdlk/leetcode/issues/130"
+companies:
+  - { name: "Anduril", period: "Thirty Days", frequency: 100 }
+  - { name: "Apple", period: "Thirty Days", frequency: 81.7 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 65.8 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Qualcomm", period: "Three Months", frequency: 100 }
+  - { name: "TikTok", period: "Three Months", frequency: 89.3 }
+  - { name: "Uber", period: "Three Months", frequency: 72.9 }
+  - { name: "Infosys", period: "Three Months", frequency: 66 }
+  - { name: "Microsoft", period: "Three Months", frequency: 57.2 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Autodesk", period: "Six Months", frequency: 100 }
+  - { name: "ByteDance", period: "Six Months", frequency: 100 }
+  - { name: "Rivian", period: "Six Months", frequency: 100 }
+  - { name: "Snap", period: "Six Months", frequency: 100 }
+  - { name: "Waymo", period: "Six Months", frequency: 100 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 95.1 }
+  - { name: "Visa", period: "Six Months", frequency: 80.9 }
+  - { name: "Nvidia", period: "Six Months", frequency: 78.7 }
+  - { name: "Oracle", period: "Six Months", frequency: 78.7 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 69.8 }
+  - { name: "Yandex", period: "Six Months", frequency: 59.6 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 59 }
 sidebar:
  label: 'Number of Islands'
  badge: 'Medium'
@@ -8,6 +8,10 @@ topics:
  - { name: "Breadth-First Search", slug: "breadth-first-search" }
  - { name: "Matrix", slug: "matrix" }
 issue: "https://github.com/prdlk/leetcode/issues/132"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Pacific Atlantic Water Flow'
  badge: 'Medium'
@@ -9,6 +9,19 @@ topics:
  - { name: "Topological Sort", slug: "topological-sort" }
  - { name: "Directed Acyclic Graph", slug: "directed-acyclic-graph" }
 issue: "https://github.com/prdlk/leetcode/issues/142"
+companies:
+  - { name: "Amazon", period: "Thirty Days", frequency: 69.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "TikTok", period: "Three Months", frequency: 70.9 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "ByteDance", period: "Six Months", frequency: 88.6 }
+  - { name: "Walmart Labs", period: "Six Months", frequency: 70.5 }
+  - { name: "Anduril", period: "Six Months", frequency: 65.4 }
+  - { name: "Snowflake", period: "Six Months", frequency: 58.7 }
+  - { name: "Apple", period: "Six Months", frequency: 57.9 }
+  - { name: "Infosys", period: "Six Months", frequency: 56.2 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'Course Schedule'
  badge: 'Medium'
@@ -8,6 +8,21 @@ topics:
  - { name: "Graph Theory", slug: "graph" }
  - { name: "Topological Sort", slug: "topological-sort" }
 issue: "https://github.com/prdlk/leetcode/issues/143"
+companies:
+  - { name: "Salesforce", period: "Thirty Days", frequency: 100 }
+  - { name: "Walmart Labs", period: "Thirty Days", frequency: 100 }
+  - { name: "Apple", period: "Three Months", frequency: 80.4 }
+  - { name: "Amazon", period: "Three Months", frequency: 39.1 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 36.8 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "Audible", period: "Six Months", frequency: 100 }
+  - { name: "Aurora", period: "Six Months", frequency: 100 }
+  - { name: "Anduril", period: "Six Months", frequency: 92.8 }
+  - { name: "Netflix", period: "Six Months", frequency: 90.1 }
+  - { name: "DoorDash", period: "Six Months", frequency: 89.7 }
+  - { name: "Snowflake", period: "Six Months", frequency: 79.8 }
+  - { name: "Uber", period: "Six Months", frequency: 55.2 }
+  - { name: "Microsoft", period: "Six Months", frequency: 32 }
 sidebar:
  label: 'Course Schedule II'
  badge: 'Medium'
@@ -8,6 +8,11 @@ topics:
  - { name: "Union-Find", slug: "union-find" }
  - { name: "Graph Theory", slug: "graph" }
 issue: "https://github.com/prdlk/leetcode/issues/146"
+companies:
+  - { name: "Box", period: "Three Months", frequency: 100 }
+  - { name: "Amazon", period: "Three Months", frequency: 21.2 }
+  - { name: "Bloomberg", period: "Six Months", frequency: 25.5 }
+  - { name: "Microsoft", period: "Six Months", frequency: 24.1 }
 sidebar:
  label: 'Redundant Connection'
  badge: 'Medium'
@@ -6,6 +6,17 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Dynamic Programming", slug: "dynamic-programming" }
 issue: "https://github.com/prdlk/leetcode/issues/158"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 83.1 }
+  - { name: "Infosys", period: "Thirty Days", frequency: 68.6 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Google", period: "Thirty Days", frequency: 50.2 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 39.1 }
+  - { name: "Microsoft", period: "Three Months", frequency: 53.2 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Freecharge", period: "Six Months", frequency: 100 }
+  - { name: "Agoda", period: "Six Months", frequency: 65 }
 sidebar:
  label: 'House Robber'
  badge: 'Medium'
@@ -9,6 +9,15 @@ topics:
  - { name: "Knapsack Problem", slug: "knapsack-problem" }
  - { name: "Complete Knapsack", slug: "complete-knapsack" }
 issue: "https://github.com/prdlk/leetcode/issues/159"
+companies:
+  - { name: "Microsoft", period: "Thirty Days", frequency: 67.9 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Google", period: "Thirty Days", frequency: 29 }
+  - { name: "Bloomberg", period: "Three Months", frequency: 59.7 }
+  - { name: "Amazon", period: "Three Months", frequency: 48.7 }
+  - { name: "Intuit", period: "Six Months", frequency: 71.5 }
+  - { name: "Infosys", period: "Six Months", frequency: 67.9 }
+  - { name: "Pinterest", period: "Six Months", frequency: 64.4 }
 sidebar:
  label: 'Coin Change'
  badge: 'Medium'
@@ -7,6 +7,17 @@ topics:
  - { name: "Dynamic Programming", slug: "dynamic-programming" }
  - { name: "Memoization", slug: "memoization" }
 issue: "https://github.com/prdlk/leetcode/issues/157"
+companies:
+  - { name: "Infosys", period: "Thirty Days", frequency: 80.2 }
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Intuit", period: "Thirty Days", frequency: 66.1 }
+  - { name: "Ola Cabs", period: "Thirty Days", frequency: 65.6 }
+  - { name: "Meta", period: "Thirty Days", frequency: 53.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Google", period: "Thirty Days", frequency: 36.7 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "tcs", period: "Three Months", frequency: 47.7 }
+  - { name: "Deloitte", period: "Six Months", frequency: 81 }
 sidebar:
  label: 'Climbing Stairs'
  badge: 'Easy'
@@ -6,6 +6,12 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Backtracking", slug: "backtracking" }
 issue: "https://github.com/prdlk/leetcode/issues/150"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Google", period: "Three Months", frequency: 41 }
+  - { name: "Meta", period: "Three Months", frequency: 34.5 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Amazon", period: "Six Months", frequency: 30.1 }
 sidebar:
  label: 'Combination Sum'
  badge: 'Medium'
@@ -6,6 +6,14 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Backtracking", slug: "backtracking" }
 issue: "https://github.com/prdlk/leetcode/issues/151"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 48.9 }
+  - { name: "Microsoft", period: "Three Months", frequency: 42.1 }
+  - { name: "Google", period: "Three Months", frequency: 32.7 }
+  - { name: "Infosys", period: "Six Months", frequency: 67.9 }
+  - { name: "LinkedIn", period: "Six Months", frequency: 54.1 }
+  - { name: "Meta", period: "Six Months", frequency: 43.4 }
 sidebar:
  label: 'Permutations'
  badge: 'Medium'
@@ -7,6 +7,14 @@ topics:
  - { name: "Backtracking", slug: "backtracking" }
  - { name: "Bit Manipulation", slug: "bit-manipulation" }
 issue: "https://github.com/prdlk/leetcode/issues/149"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Amazon", period: "Thirty Days", frequency: 61.3 }
+  - { name: "Agoda", period: "Three Months", frequency: 75.3 }
+  - { name: "Microsoft", period: "Three Months", frequency: 48.3 }
+  - { name: "Meta", period: "Three Months", frequency: 43.3 }
+  - { name: "Google", period: "Three Months", frequency: 23.9 }
+  - { name: "TikTok", period: "Six Months", frequency: 64.9 }
 sidebar:
  label: 'Subsets'
  badge: 'Medium'
@@ -6,6 +6,15 @@ topics:
  - { name: "Array", slug: "array" }
  - { name: "Greedy", slug: "greedy" }
 issue: "https://github.com/prdlk/leetcode/issues/176"
+companies:
+  - { name: "Bloomberg", period: "Thirty Days", frequency: 69.8 }
+  - { name: "Sprinklr", period: "Three Months", frequency: 95.9 }
+  - { name: "TikTok", period: "Three Months", frequency: 70.9 }
+  - { name: "Microsoft", period: "Three Months", frequency: 33.4 }
+  - { name: "Amazon", period: "Three Months", frequency: 28.9 }
+  - { name: "Adobe", period: "Six Months", frequency: 74.3 }
+  - { name: "Goldman Sachs", period: "Six Months", frequency: 44.8 }
+  - { name: "Google", period: "Six Months", frequency: 17.4 }
 sidebar:
  label: 'Gas Station'
  badge: 'Medium'