docs(readme): redesign campaign overview layout and add linked week info in README.md

2026-09-16 23:16:26 +00:00 · 2026-08-24 19:22:21 -04:00
parent a41ff59406
commit 226fd2a6a8
1 changed files with 52 additions and 140 deletions
@@ -9,110 +9,22 @@
 </p>
 <p align="center">
-  <img alt="phase progress" src="https://srs-api.prdlk.workers.dev/chart/progress.svg" /><br>
+  <sub>8-week interview-prep fight camp. Each phase is a milestone; each topic an issue; each problem a sub-issue.<br>
-  <img alt="SRS ladder" src="https://srs-api.prdlk.workers.dev/chart/ladder.svg" /><br>
+  Charts are live from the SRS Worker — the daily digest email drives the schedule.</sub>
  <img alt="attempt heatmap" src="https://srs-api.prdlk.workers.dev/chart/heatmap.svg" />
 </p>
-
+<table align="center">
-## Campaign
+  <tr>
-
+    <td colspan="2" align="center"><img alt="phase progress" width="100%" src="https://srs-api.prdlk.workers.dev/chart/progress.svg" /></td>
-<sub>8-week interview-prep fight camp. Each phase is a milestone; each topic an issue; each problem a sub-issue. Core count reflects closed sub-issues.</sub>
+  </tr>
-
+  <tr>
-<table>
+    <td align="center" width="53%"><img alt="SRS ladder" width="100%" src="https://srs-api.prdlk.workers.dev/chart/ladder.svg" /></td>
-  <thead>
+    <td align="center" width="47%"><img alt="attempt heatmap" width="100%" src="https://srs-api.prdlk.workers.dev/chart/heatmap.svg" /></td>
-    <tr>
+  </tr>
      <th align="center">Phase</th>
      <th align="center">Wk</th>
      <th align="left">Date</th>
      <th align="left">Topic</th>
      <th align="center">Core</th>
      <th align="left">Core&nbsp;problems</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td rowspan="7" align="center"><strong>I</strong><br><sub>Linear Structures</sub></td>
      <td align="center">1</td><td>Mon Aug 17</td><td><a href="https://github.com/prdlk/leetcode/issues/3"><strong>01</strong> · Hash-Based Lookup</a></td><td align="center">5/5</td><td><a href="https://leetcode.com/problems/contains-duplicate/">217</a> · <a href="https://leetcode.com/problems/valid-anagram/">242</a> · <a href="https://leetcode.com/problems/two-sum/">1</a> · <a href="https://leetcode.com/problems/group-anagrams/">49</a> · <a href="https://leetcode.com/problems/top-k-frequent-elements/">347</a></td>
    </tr>
    <tr>
      <td align="center">1</td><td>Tue Aug 18</td><td><a href="https://github.com/prdlk/leetcode/issues/4"><strong>02</strong> · Prefix Sum</a></td><td align="center">3/3</td><td><a href="https://leetcode.com/problems/range-sum-query-immutable/">303</a> · <a href="https://leetcode.com/problems/product-of-array-except-self/">238</a> · <a href="https://leetcode.com/problems/subarray-sum-equals-k/">560</a></td>
    </tr>
    <tr>
      <td align="center">2</td><td>Mon Aug 24</td><td><a href="https://github.com/prdlk/leetcode/issues/5"><strong>03</strong> · Two Pointers</a></td><td align="center">2/4</td><td><a href="https://leetcode.com/problems/valid-palindrome/">125</a> · <a href="https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/">167</a> · <a href="https://leetcode.com/problems/3sum/">15</a> · <a href="https://leetcode.com/problems/container-with-most-water/">11</a></td>
    </tr>
    <tr>
      <td align="center">2</td><td>Tue Aug 25</td><td><a href="https://github.com/prdlk/leetcode/issues/6"><strong>04</strong> · Sliding Window</a></td><td align="center">1/4</td><td><a href="https://leetcode.com/problems/best-time-to-buy-and-sell-stock/">121</a> · <a href="https://leetcode.com/problems/longest-substring-without-repeating-characters/">3</a> · <a href="https://leetcode.com/problems/longest-repeating-character-replacement/">424</a> · <a href="https://leetcode.com/problems/permutation-in-string/">567</a></td>
    </tr>
    <tr>
      <td align="center">2</td><td>Wed Aug 26</td><td><a href="https://github.com/prdlk/leetcode/issues/7"><strong>05</strong> · Binary Search</a></td><td align="center">3/5</td><td><a href="https://leetcode.com/problems/binary-search/">704</a> · <a href="https://leetcode.com/problems/koko-eating-bananas/">875</a> · <a href="https://leetcode.com/problems/search-in-rotated-sorted-array/">33</a> · <a href="https://leetcode.com/problems/search-a-2d-matrix/">74</a> · <a href="https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/">153</a></td>
    </tr>
    <tr>
      <td align="center">2</td><td>Thu Aug 27</td><td><a href="https://github.com/prdlk/leetcode/issues/8"><strong>06</strong> · Stack</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/valid-parentheses/">20</a> · <a href="https://leetcode.com/problems/min-stack/">155</a> · <a href="https://leetcode.com/problems/evaluate-reverse-polish-notation/">150</a></td>
    </tr>
    <tr>
      <td align="center">2</td><td>Fri Aug 28</td><td><a href="https://github.com/prdlk/leetcode/issues/9"><strong>07</strong> · Monotonic Stack</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/daily-temperatures/">739</a> · <a href="https://leetcode.com/problems/car-fleet/">853</a></td>
    </tr>
    <tr>
      <td rowspan="3" align="center"><strong>II</strong><br><sub>Nodal & Grid</sub></td>
      <td align="center">3</td><td>Mon Aug 31</td><td><a href="https://github.com/prdlk/leetcode/issues/10"><strong>08</strong> · Linked List</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/reverse-linked-list/">206</a> · <a href="https://leetcode.com/problems/merge-two-sorted-lists/">21</a> · <a href="https://leetcode.com/problems/linked-list-cycle/">141</a></td>
    </tr>
    <tr>
      <td align="center">3</td><td>Tue Sep 1</td><td><a href="https://github.com/prdlk/leetcode/issues/11"><strong>09</strong> · Hybrid Structures</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/lru-cache/">146</a> · <a href="https://leetcode.com/problems/add-two-numbers/">2</a></td>
    </tr>
    <tr>
      <td align="center">3</td><td>Wed Sep 2</td><td><a href="https://github.com/prdlk/leetcode/issues/12"><strong>10</strong> · Matrix Index Math</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/rotate-image/">48</a> · <a href="https://leetcode.com/problems/spiral-matrix/">54</a> · <a href="https://leetcode.com/problems/set-matrix-zeroes/">73</a></td>
    </tr>
    <tr>
      <td rowspan="5" align="center"><strong>III</strong><br><sub>Hierarchical</sub></td>
      <td align="center">3</td><td>Thu Sep 3</td><td><a href="https://github.com/prdlk/leetcode/issues/13"><strong>11</strong> · Tree DFS</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/invert-binary-tree/">226</a> · <a href="https://leetcode.com/problems/maximum-depth-of-binary-tree/">104</a> · <a href="https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/">236</a></td>
    </tr>
    <tr>
      <td align="center">3</td><td>Fri Sep 4</td><td><a href="https://github.com/prdlk/leetcode/issues/14"><strong>12</strong> · Tree BFS</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/binary-tree-level-order-traversal/">102</a> · <a href="https://leetcode.com/problems/binary-tree-right-side-view/">199</a> · <a href="https://leetcode.com/problems/count-good-nodes-in-binary-tree/">1448</a></td>
    </tr>
    <tr>
      <td align="center">4</td><td>Mon Sep 7</td><td><a href="https://github.com/prdlk/leetcode/issues/15"><strong>13</strong> · Binary Search Tree</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/validate-binary-search-tree/">98</a> · <a href="https://leetcode.com/problems/kth-smallest-element-in-a-bst/">230</a> · <a href="https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">235</a></td>
    </tr>
    <tr>
      <td align="center">4</td><td>Tue Sep 8</td><td><a href="https://github.com/prdlk/leetcode/issues/16"><strong>14</strong> · Heap / Priority Queue</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/kth-largest-element-in-an-array/">215</a> · <a href="https://leetcode.com/problems/k-closest-points-to-origin/">973</a> · <a href="https://leetcode.com/problems/merge-k-sorted-lists/">23</a></td>
    </tr>
    <tr>
      <td align="center">4</td><td>Wed Sep 9</td><td><a href="https://github.com/prdlk/leetcode/issues/17"><strong>15</strong> · Trie</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/implement-trie-prefix-tree/">208</a> · <a href="https://leetcode.com/problems/design-add-and-search-words-data-structure/">211</a></td>
    </tr>
    <tr>
      <td rowspan="4" align="center"><strong>IV</strong><br><sub>Relational</sub></td>
      <td align="center">4</td><td>Thu Sep 10</td><td><a href="https://github.com/prdlk/leetcode/issues/18"><strong>16</strong> · Graph DFS</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/number-of-islands/">200</a> · <a href="https://leetcode.com/problems/clone-graph/">133</a> · <a href="https://leetcode.com/problems/pacific-atlantic-water-flow/">417</a></td>
    </tr>
    <tr>
      <td align="center">4</td><td>Fri Sep 11</td><td><a href="https://github.com/prdlk/leetcode/issues/19"><strong>17</strong> · Graph BFS</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/rotting-oranges/">994</a> · <a href="https://leetcode.com/problems/word-ladder/">127</a></td>
    </tr>
    <tr>
      <td align="center">5</td><td>Mon Sep 14</td><td><a href="https://github.com/prdlk/leetcode/issues/20"><strong>18</strong> · Topological Sort</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/course-schedule/">207</a> · <a href="https://leetcode.com/problems/course-schedule-ii/">210</a></td>
    </tr>
    <tr>
      <td align="center">5</td><td>Tue Sep 15</td><td><a href="https://github.com/prdlk/leetcode/issues/21"><strong>19</strong> · Union-Find</a></td><td align="center">0/2</td><td><a href="https://leetcode.com/problems/redundant-connection/">684</a> · <a href="https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/">323</a></td>
    </tr>
    <tr>
      <td rowspan="5" align="center"><strong>V</strong><br><sub>Decision Space</sub></td>
      <td align="center">5</td><td>Wed Sep 16</td><td><a href="https://github.com/prdlk/leetcode/issues/22"><strong>20</strong> · Backtracking</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/subsets/">78</a> · <a href="https://leetcode.com/problems/combination-sum/">39</a> · <a href="https://leetcode.com/problems/permutations/">46</a></td>
    </tr>
    <tr>
      <td align="center">5</td><td>Thu Sep 17</td><td><a href="https://github.com/prdlk/leetcode/issues/23"><strong>21</strong> · 1-D Dynamic Programming</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/climbing-stairs/">70</a> · <a href="https://leetcode.com/problems/house-robber/">198</a> · <a href="https://leetcode.com/problems/coin-change/">322</a></td>
    </tr>
    <tr>
      <td align="center">5</td><td>Fri Sep 18</td><td><a href="https://github.com/prdlk/leetcode/issues/24"><strong>22</strong> · Multi-D / Grid DP</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/unique-paths/">62</a> · <a href="https://leetcode.com/problems/minimum-path-sum/">64</a> · <a href="https://leetcode.com/problems/longest-common-subsequence/">1143</a></td>
    </tr>
    <tr>
      <td align="center">6</td><td>Mon Sep 21</td><td><a href="https://github.com/prdlk/leetcode/issues/25"><strong>23</strong> · Greedy</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/maximum-subarray/">53</a> · <a href="https://leetcode.com/problems/jump-game/">55</a> · <a href="https://leetcode.com/problems/gas-station/">134</a></td>
    </tr>
    <tr>
      <td align="center">6</td><td>Tue Sep 22</td><td><a href="https://github.com/prdlk/leetcode/issues/26"><strong>24</strong> · Intervals</a></td><td align="center">0/3</td><td><a href="https://leetcode.com/problems/insert-interval/">57</a> · <a href="https://leetcode.com/problems/merge-intervals/">56</a> · <a href="https://leetcode.com/problems/non-overlapping-intervals/">435</a></td>
    </tr>
  </tbody>
 </table>
-## Phase I — Linear Structures (Week 1)
+## Phase I — Linear Structures · Weeks 1–2
- 
+
 <table>
  <thead>
    <tr>
@@ -124,7 +36,7 @@
  </thead>
  <tbody>
    <tr>
-      <td rowspan="9"><strong>1. Hash-Based Lookup</strong><br><sub>builds on nothing</sub></td>
+      <td rowspan="9"><a href="https://github.com/prdlk/leetcode/issues/3"><strong>1. Hash-Based Lookup</strong></a><br><sub>Wk 1 · Mon Aug 17</sub><br><sub>builds on nothing</sub></td>
      <td align="center"><code>A</code></td><td align="center">217</td><td><a href="https://leetcode.com/problems/contains-duplicate/">Contains Duplicate</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">242</td><td><a href="https://leetcode.com/problems/valid-anagram/">Valid Anagram</a></td></tr>
@@ -136,7 +48,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">128</td><td><a href="https://leetcode.com/problems/longest-consecutive-sequence/">Longest Consecutive Sequence</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">290</td><td><a href="https://leetcode.com/problems/word-pattern/">Word Pattern</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>2. Prefix Sum</strong><br><sub>builds on 1</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/4"><strong>2. Prefix Sum</strong></a><br><sub>Wk 1 · Tue Aug 18</sub><br><sub>builds on 1</sub></td>
      <td align="center"><code>A</code></td><td align="center">303</td><td><a href="https://leetcode.com/problems/range-sum-query-immutable/">Range Sum Query</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">238</td><td><a href="https://leetcode.com/problems/product-of-array-except-self/">Product of Array Except Self</a></td></tr>
@@ -144,7 +56,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">525</td><td><a href="https://leetcode.com/problems/contiguous-array/">Contiguous Array</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">974</td><td><a href="https://leetcode.com/problems/subarray-sums-divisible-by-k/">Subarray Sums Divisible by K</a></td></tr>
    <tr>
-      <td rowspan="9"><strong>3. Two Pointers</strong><br><sub>builds on ordered iteration</sub></td>
+      <td rowspan="9"><a href="https://github.com/prdlk/leetcode/issues/5"><strong>3. Two Pointers</strong></a><br><sub>Wk 2 · Mon Aug 24</sub><br><sub>builds on ordered iteration</sub></td>
      <td align="center"><code>A</code></td><td align="center">125</td><td><a href="https://leetcode.com/problems/valid-palindrome/">Valid Palindrome</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">167</td><td><a href="https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/">Two Sum II</a></td></tr>
@@ -156,7 +68,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">189</td><td><a href="https://leetcode.com/problems/rotate-array/">Rotate Array</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">80</td><td><a href="https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/">Remove Duplicates II</a></td></tr>
    <tr>
-      <td rowspan="8"><strong>4. Sliding Window</strong><br><sub>builds on 3</sub></td>
+      <td rowspan="8"><a href="https://github.com/prdlk/leetcode/issues/6"><strong>4. Sliding Window</strong></a><br><sub>Wk 2 · Tue Aug 25</sub><br><sub>builds on 3</sub></td>
      <td align="center"><code>A</code></td><td align="center">121</td><td><a href="https://leetcode.com/problems/best-time-to-buy-and-sell-stock/">Best Time to Buy and Sell Stock</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">3</td><td><a href="https://leetcode.com/problems/longest-substring-without-repeating-characters/">Longest Substring Without Repeating Characters</a></td></tr>
@@ -167,7 +79,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">1004</td><td><a href="https://leetcode.com/problems/max-consecutive-ones-iii/">Max Consecutive Ones III</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">643</td><td><a href="https://leetcode.com/problems/maximum-average-subarray-i/">Maximum Average Subarray</a></td></tr>
    <tr>
-      <td rowspan="9"><strong>5. Binary Search</strong><br><sub>builds on ordered / monotonic invariants</sub></td>
+      <td rowspan="9"><a href="https://github.com/prdlk/leetcode/issues/7"><strong>5. Binary Search</strong></a><br><sub>Wk 2 · Wed Aug 26</sub><br><sub>builds on ordered / monotonic invariants</sub></td>
      <td align="center"><code>A</code></td><td align="center">704</td><td><a href="https://leetcode.com/problems/binary-search/">Binary Search</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">74</td><td><a href="https://leetcode.com/problems/search-a-2d-matrix/">Search a 2D Matrix</a></td></tr>
@@ -179,7 +91,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">34</td><td><a href="https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/">First &amp; Last Position</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">4</td><td><a href="https://leetcode.com/problems/median-of-two-sorted-arrays/">Median of Two Sorted Arrays</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>6. Stack</strong><br><sub>independent primitive</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/8"><strong>6. Stack</strong></a><br><sub>Wk 2 · Thu Aug 27</sub><br><sub>independent primitive</sub></td>
      <td align="center"><code>A</code></td><td align="center">20</td><td><a href="https://leetcode.com/problems/valid-parentheses/">Valid Parentheses</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">155</td><td><a href="https://leetcode.com/problems/min-stack/">Min Stack</a></td></tr>
@@ -187,7 +99,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">71</td><td><a href="https://leetcode.com/problems/simplify-path/">Simplify Path</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">224</td><td><a href="https://leetcode.com/problems/basic-calculator/">Basic Calculator</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>7. Monotonic Stack</strong><br><sub>builds on 6</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/9"><strong>7. Monotonic Stack</strong></a><br><sub>Wk 2 · Fri Aug 28</sub><br><sub>builds on 6</sub></td>
      <td align="center"><code>A</code></td><td align="center">739</td><td><a href="https://leetcode.com/problems/daily-temperatures/">Daily Temperatures</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">853</td><td><a href="https://leetcode.com/problems/car-fleet/">Car Fleet</a></td></tr>
@@ -196,10 +108,10 @@
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">84</td><td><a href="https://leetcode.com/problems/largest-rectangle-in-histogram/">Largest Rectangle in Histogram</a></td></tr>
  </tbody>
 </table>
---
+
- 
+
-## Phase II — Nodal &amp; Grid Structures (Week 2)
+## Phase II — Nodal &amp; Grid Structures · Week 3
- 
+
 <table>
  <thead>
    <tr>
@@ -211,7 +123,7 @@
  </thead>
  <tbody>
    <tr>
-      <td rowspan="10"><strong>8. Linked List</strong><br><sub>independent primitive</sub></td>
+      <td rowspan="10"><a href="https://github.com/prdlk/leetcode/issues/10"><strong>8. Linked List</strong></a><br><sub>Wk 3 · Mon Aug 31</sub><br><sub>independent primitive</sub></td>
      <td align="center"><code>A</code></td><td align="center">206</td><td><a href="https://leetcode.com/problems/reverse-linked-list/">Reverse Linked List</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">21</td><td><a href="https://leetcode.com/problems/merge-two-sorted-lists/">Merge Two Sorted Lists</a></td></tr>
@@ -224,14 +136,14 @@
    <tr><td align="center"><code>B</code></td><td align="center">61</td><td><a href="https://leetcode.com/problems/rotate-list/">Rotate List</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">86</td><td><a href="https://leetcode.com/problems/partition-list/">Partition List</a></td></tr>
    <tr>
-      <td rowspan="4"><strong>9. Hybrid Structures</strong><br><sub>builds on 1 + 8</sub></td>
+      <td rowspan="4"><a href="https://github.com/prdlk/leetcode/issues/11"><strong>9. Hybrid Structures</strong></a><br><sub>Wk 3 · Tue Sep 1</sub><br><sub>builds on 1 + 8</sub></td>
      <td align="center"><code>A</code></td><td align="center">146</td><td><a href="https://leetcode.com/problems/lru-cache/">LRU Cache</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">2</td><td><a href="https://leetcode.com/problems/add-two-numbers/">Add Two Numbers</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">138</td><td><a href="https://leetcode.com/problems/copy-list-with-random-pointer/">Copy List with Random Pointer</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">380</td><td><a href="https://leetcode.com/problems/insert-delete-getrandom-o1/">Insert Delete GetRandom O(1)</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>10. Matrix Index Math</strong><br><sub>builds on 3 — NOT graph traversal</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/12"><strong>10. Matrix Index Math</strong></a><br><sub>Wk 3 · Wed Sep 2</sub><br><sub>builds on 3 — NOT graph traversal</sub></td>
      <td align="center"><code>A</code></td><td align="center">48</td><td><a href="https://leetcode.com/problems/rotate-image/">Rotate Image</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">54</td><td><a href="https://leetcode.com/problems/spiral-matrix/">Spiral Matrix</a></td></tr>
@@ -240,10 +152,10 @@
    <tr><td align="center"><code>B</code></td><td align="center">289</td><td><a href="https://leetcode.com/problems/game-of-life/">Game of Life</a></td></tr>
  </tbody>
 </table>
---
+
- 
+
-## Phase III — Hierarchical Structures (Week 3)
+## Phase III — Hierarchical Structures · Weeks 3–4
- 
+
 <table>
  <thead>
    <tr>
@@ -255,7 +167,7 @@
  </thead>
  <tbody>
    <tr>
-      <td rowspan="10"><strong>11. Tree DFS</strong><br><sub>builds on recursion</sub></td>
+      <td rowspan="10"><a href="https://github.com/prdlk/leetcode/issues/13"><strong>11. Tree DFS</strong></a><br><sub>Wk 3 · Thu Sep 3</sub><br><sub>builds on recursion</sub></td>
      <td align="center"><code>A</code></td><td align="center">226</td><td><a href="https://leetcode.com/problems/invert-binary-tree/">Invert Binary Tree</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">104</td><td><a href="https://leetcode.com/problems/maximum-depth-of-binary-tree/">Maximum Depth of Binary Tree</a></td></tr>
@@ -268,7 +180,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">129</td><td><a href="https://leetcode.com/problems/sum-root-to-leaf-numbers/">Sum Root to Leaf Numbers</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">543</td><td><a href="https://leetcode.com/problems/diameter-of-binary-tree/">Diameter of Binary Tree</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>12. Tree BFS</strong><br><sub>builds on 6's sibling (queue) + 11</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/14"><strong>12. Tree BFS</strong></a><br><sub>Wk 3 · Fri Sep 4</sub><br><sub>builds on 6's sibling (queue) + 11</sub></td>
      <td align="center"><code>A</code></td><td align="center">102</td><td><a href="https://leetcode.com/problems/binary-tree-level-order-traversal/">Level Order Traversal</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">199</td><td><a href="https://leetcode.com/problems/binary-tree-right-side-view/">Right Side View</a></td></tr>
@@ -276,7 +188,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">103</td><td><a href="https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/">Zigzag Level Order</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">637</td><td><a href="https://leetcode.com/problems/average-of-levels-in-binary-tree/">Average of Levels</a></td></tr>
    <tr>
-      <td rowspan="7"><strong>13. Binary Search Tree</strong><br><sub>builds on 5 + 11</sub></td>
+      <td rowspan="7"><a href="https://github.com/prdlk/leetcode/issues/15"><strong>13. Binary Search Tree</strong></a><br><sub>Wk 4 · Mon Sep 7</sub><br><sub>builds on 5 + 11</sub></td>
      <td align="center"><code>A</code></td><td align="center">98</td><td><a href="https://leetcode.com/problems/validate-binary-search-tree/">Validate BST</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">230</td><td><a href="https://leetcode.com/problems/kth-smallest-element-in-a-bst/">Kth Smallest in BST</a></td></tr>
@@ -286,7 +198,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">173</td><td><a href="https://leetcode.com/problems/binary-search-tree-iterator/">BST Iterator</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">108</td><td><a href="https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/">Sorted Array to BST</a></td></tr>
    <tr>
-      <td rowspan="9"><strong>14. Heap / Priority Queue</strong><br><sub>implicit tree over array</sub></td>
+      <td rowspan="9"><a href="https://github.com/prdlk/leetcode/issues/16"><strong>14. Heap / Priority Queue</strong></a><br><sub>Wk 4 · Tue Sep 8</sub><br><sub>implicit tree over array</sub></td>
      <td align="center"><code>A</code></td><td align="center">215</td><td><a href="https://leetcode.com/problems/kth-largest-element-in-an-array/">Kth Largest in Array</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">703</td><td><a href="https://leetcode.com/problems/kth-largest-element-in-a-stream/">Kth Largest in Stream</a></td></tr>
@@ -298,17 +210,17 @@
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">295</td><td><a href="https://leetcode.com/problems/find-median-from-data-stream/">Find Median from Data Stream</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">502</td><td><a href="https://leetcode.com/problems/ipo/">IPO</a></td></tr>
    <tr>
-      <td rowspan="3"><strong>15. Trie</strong><br><sub>builds on 11</sub></td>
+      <td rowspan="3"><a href="https://github.com/prdlk/leetcode/issues/17"><strong>15. Trie</strong></a><br><sub>Wk 4 · Wed Sep 9</sub><br><sub>builds on 11</sub></td>
      <td align="center"><code>A</code></td><td align="center">208</td><td><a href="https://leetcode.com/problems/implement-trie-prefix-tree/">Implement Trie</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">211</td><td><a href="https://leetcode.com/problems/design-add-and-search-words-data-structure/">Add &amp; Search Words</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">212</td><td><a href="https://leetcode.com/problems/word-search-ii/">Word Search II</a> <sub>(needs topic 20 — schedule after)</sub></td></tr>
  </tbody>
 </table>
---
+
- 
+
-## Phase IV — Relational Structures (Week 4)
+## Phase IV — Relational Structures · Weeks 4–5
- 
+
 <table>
  <thead>
    <tr>
@@ -320,7 +232,7 @@
  </thead>
  <tbody>
    <tr>
-      <td rowspan="7"><strong>16. Graph DFS</strong><br><sub>builds on 11 + visited set</sub></td>
+      <td rowspan="7"><a href="https://github.com/prdlk/leetcode/issues/18"><strong>16. Graph DFS</strong></a><br><sub>Wk 4 · Thu Sep 10</sub><br><sub>builds on 11 + visited set</sub></td>
      <td align="center"><code>A</code></td><td align="center">200</td><td><a href="https://leetcode.com/problems/number-of-islands/">Number of Islands</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">695</td><td><a href="https://leetcode.com/problems/max-area-of-island/">Max Area of Island</a></td></tr>
@@ -330,7 +242,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">399</td><td><a href="https://leetcode.com/problems/evaluate-division/">Evaluate Division</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">261</td><td><a href="https://leetcode.com/problems/graph-valid-tree/">Graph Valid Tree</a></td></tr>
    <tr>
-      <td rowspan="5"><strong>17. Graph BFS</strong><br><sub>builds on 12 + visited set — shortest path unweighted</sub></td>
+      <td rowspan="5"><a href="https://github.com/prdlk/leetcode/issues/19"><strong>17. Graph BFS</strong></a><br><sub>Wk 4 · Fri Sep 11</sub><br><sub>builds on 12 + visited set — shortest path unweighted</sub></td>
      <td align="center"><code>A</code></td><td align="center">994</td><td><a href="https://leetcode.com/problems/rotting-oranges/">Rotting Oranges</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">127</td><td><a href="https://leetcode.com/problems/word-ladder/">Word Ladder</a></td></tr>
@@ -338,14 +250,14 @@
    <tr><td align="center"><code>B</code></td><td align="center">433</td><td><a href="https://leetcode.com/problems/minimum-genetic-mutation/">Minimum Genetic Mutation</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">286</td><td><a href="https://leetcode.com/problems/walls-and-gates/">Walls and Gates</a></td></tr>
    <tr>
-      <td rowspan="4"><strong>18. Topological Sort</strong><br><sub>builds on 16</sub></td>
+      <td rowspan="4"><a href="https://github.com/prdlk/leetcode/issues/20"><strong>18. Topological Sort</strong></a><br><sub>Wk 5 · Mon Sep 14</sub><br><sub>builds on 16</sub></td>
      <td align="center"><code>A</code></td><td align="center">207</td><td><a href="https://leetcode.com/problems/course-schedule/">Course Schedule</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">210</td><td><a href="https://leetcode.com/problems/course-schedule-ii/">Course Schedule II</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">269</td><td><a href="https://leetcode.com/problems/alien-dictionary/">Alien Dictionary</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">1462</td><td><a href="https://leetcode.com/problems/course-schedule-iv/">Course Schedule IV</a></td></tr>
    <tr>
-      <td rowspan="4"><strong>19. Union-Find</strong><br><sub>builds on 16's problem class</sub></td>
+      <td rowspan="4"><a href="https://github.com/prdlk/leetcode/issues/21"><strong>19. Union-Find</strong></a><br><sub>Wk 5 · Tue Sep 15</sub><br><sub>builds on 16's problem class</sub></td>
      <td align="center"><code>A</code></td><td align="center">684</td><td><a href="https://leetcode.com/problems/redundant-connection/">Redundant Connection</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">323</td><td><a href="https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/">Number of Connected Components</a></td></tr>
@@ -353,10 +265,10 @@
    <tr><td align="center"><code>B</code></td><td align="center">721</td><td><a href="https://leetcode.com/problems/accounts-merge/">Accounts Merge</a></td></tr>
  </tbody>
 </table>
---
+
- 
+
-## Phase V — Decision-Space Exploration (Weeks 4–5)
+## Phase V — Decision-Space Exploration · Weeks 5–6
- 
+
 <table>
  <thead>
    <tr>
@@ -368,7 +280,7 @@
  </thead>
  <tbody>
    <tr>
-      <td rowspan="8"><strong>20. Backtracking</strong><br><sub>builds on 16 — then unlock LC 212 from topic 15</sub></td>
+      <td rowspan="8"><a href="https://github.com/prdlk/leetcode/issues/22"><strong>20. Backtracking</strong></a><br><sub>Wk 5 · Wed Sep 16</sub><br><sub>builds on 16 — then unlock LC 212 from topic 15</sub></td>
      <td align="center"><code>A</code></td><td align="center">78</td><td><a href="https://leetcode.com/problems/subsets/">Subsets</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">39</td><td><a href="https://leetcode.com/problems/combination-sum/">Combination Sum</a></td></tr>
@@ -379,7 +291,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">22</td><td><a href="https://leetcode.com/problems/generate-parentheses/">Generate Parentheses</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">52</td><td><a href="https://leetcode.com/problems/n-queens-ii/">N-Queens II</a></td></tr>
    <tr>
-      <td rowspan="9"><strong>21. 1-D Dynamic Programming</strong><br><sub>builds on 20</sub></td>
+      <td rowspan="9"><a href="https://github.com/prdlk/leetcode/issues/23"><strong>21. 1-D Dynamic Programming</strong></a><br><sub>Wk 5 · Thu Sep 17</sub><br><sub>builds on 20</sub></td>
      <td align="center"><code>A</code></td><td align="center">70</td><td><a href="https://leetcode.com/problems/climbing-stairs/">Climbing Stairs</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">746</td><td><a href="https://leetcode.com/problems/min-cost-climbing-stairs/">Min Cost Climbing Stairs</a></td></tr>
@@ -391,7 +303,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">91</td><td><a href="https://leetcode.com/problems/decode-ways/">Decode Ways</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">647</td><td><a href="https://leetcode.com/problems/palindromic-substrings/">Palindromic Substrings</a></td></tr>
    <tr>
-      <td rowspan="8"><strong>22. Multi-D / Grid DP</strong><br><sub>builds on 21</sub></td>
+      <td rowspan="8"><a href="https://github.com/prdlk/leetcode/issues/24"><strong>22. Multi-D / Grid DP</strong></a><br><sub>Wk 5 · Fri Sep 18</sub><br><sub>builds on 21</sub></td>
      <td align="center"><code>A</code></td><td align="center">62</td><td><a href="https://leetcode.com/problems/unique-paths/">Unique Paths</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">64</td><td><a href="https://leetcode.com/problems/minimum-path-sum/">Minimum Path Sum</a></td></tr>
@@ -402,7 +314,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">221</td><td><a href="https://leetcode.com/problems/maximal-square/">Maximal Square</a></td></tr>
    <tr><td align="center"><code>B</code> ⭐</td><td align="center">97</td><td><a href="https://leetcode.com/problems/interleaving-string/">Interleaving String</a></td></tr>
    <tr>
-      <td rowspan="7"><strong>23. Greedy</strong><br><sub>builds on 21 — includes Kadane's</sub></td>
+      <td rowspan="7"><a href="https://github.com/prdlk/leetcode/issues/25"><strong>23. Greedy</strong></a><br><sub>Wk 6 · Mon Sep 21</sub><br><sub>builds on 21 — includes Kadane's</sub></td>
      <td align="center"><code>A</code></td><td align="center">53</td><td><a href="https://leetcode.com/problems/maximum-subarray/">Maximum Subarray</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">55</td><td><a href="https://leetcode.com/problems/jump-game/">Jump Game</a></td></tr>
@@ -412,7 +324,7 @@
    <tr><td align="center"><code>B</code></td><td align="center">918</td><td><a href="https://leetcode.com/problems/maximum-sum-circular-subarray/">Maximum Sum Circular Subarray</a></td></tr>
    <tr><td align="center"><code>B</code></td><td align="center">763</td><td><a href="https://leetcode.com/problems/partition-labels/">Partition Labels</a></td></tr>
    <tr>
-      <td rowspan="7"><strong>24. Intervals</strong><br><sub>builds on 23</sub></td>
+      <td rowspan="7"><a href="https://github.com/prdlk/leetcode/issues/26"><strong>24. Intervals</strong></a><br><sub>Wk 6 · Tue Sep 22</sub><br><sub>builds on 23</sub></td>
      <td align="center"><code>A</code></td><td align="center">57</td><td><a href="https://leetcode.com/problems/insert-interval/">Insert Interval</a></td>
    </tr>
    <tr><td align="center"><code>A</code></td><td align="center">56</td><td><a href="https://leetcode.com/problems/merge-intervals/">Merge Intervals</a></td></tr>