From 7d57faa958ec0cee9d7e5fdc82b3dec8a12d1c84 Mon Sep 17 00:00:00 2001
From: Prad Nukala <prad@sonr.io>
Date: Tue, 22 Sep 2026 13:01:22 -0400
Subject: [PATCH] feat(work): add solution stub for Course Schedule (207)

---
 .../topological-sort/207-course-schedule.mdx  | 34 ++++++++++++
 apps/docs/content/topological-sort/meta.ts    |  3 ++
 .../Depth-First Search/207.course-schedule.py | 52 +++++++++++++++++++
 3 files changed, 89 insertions(+)
 create mode 100644 apps/docs/content/topological-sort/207-course-schedule.mdx
 create mode 100644 apps/docs/content/topological-sort/meta.ts
 create mode 100644 work/1/Medium/Depth-First Search/207.course-schedule.py

diff --git a/apps/docs/content/topological-sort/207-course-schedule.mdx b/apps/docs/content/topological-sort/207-course-schedule.mdx
new file mode 100644
index 0000000..1c51120
--- /dev/null
+++ b/apps/docs/content/topological-sort/207-course-schedule.mdx
@@ -0,0 +1,34 @@
+---
+title: '207. Course Schedule'
+description: There are a total of numCourses courses you have to take, labeled from 0 to numCourses - 1. You are given an array prerequisites where prerequisites[i] = [ai, bi] indicates that you must take course bi first if you want to take course ai
+sidebar:
+  label: 'Course Schedule'
+  badge: 'Medium'
+---
+
+<Badge variant="accent">Depth-First Search</Badge>
+
+### Example 1:
+- Input: `numCourses = 2, prerequisites = [[1,0]]`
+- Output: `true`
+- Explanation: There are a total of `2` courses to take. To take course `1` you should have finished course `0`. So it is possible.
+
+### Example 2:
+- Input: `numCourses = 2, prerequisites = [[1,0],[0,1]]`
+- Output: `false`
+- Explanation: There are a total of `2` courses to take. To take course `1` you should have finished course `0`, and to take course `0` you should also have finished course `1`. So it is impossible.
+
+### Constraints:
+
+- `1 <= numCourses <= 2000`
+- `0 <= prerequisites.length <= 5000`
+- `prerequisites[i].length == 2`
+- `0 <= ai, bi < numCourses`
+- All the pairs `prerequisites[i]` are unique.
+
+## Solution
+
+```py
+class Solution:
+    def canFinish(self, numCourses: int, prerequisites: list[list[int]]) -> bool:
+```
diff --git a/apps/docs/content/topological-sort/meta.ts b/apps/docs/content/topological-sort/meta.ts
new file mode 100644
index 0000000..b560581
--- /dev/null
+++ b/apps/docs/content/topological-sort/meta.ts
@@ -0,0 +1,3 @@
+import { defineMeta } from "blume";
+
+export default defineMeta({ title: "Topological Sort", order: 18 });
diff --git a/work/1/Medium/Depth-First Search/207.course-schedule.py b/work/1/Medium/Depth-First Search/207.course-schedule.py
new file mode 100644
index 0000000..c617af0
--- /dev/null
+++ b/work/1/Medium/Depth-First Search/207.course-schedule.py	
@@ -0,0 +1,52 @@
+"""
+207. Course Schedule
+Difficulty: Medium
+https://leetcode.com/problems/course-schedule/
+
+──────────────────────────────────────────────────
+
+There are a total of numCourses courses you have to take, labeled
+from 0 to numCourses - 1. You are given an array prerequisites where
+prerequisites[i] = [ai, bi] indicates that you must take course bi
+first if you want to take course ai.
+
+• For example, the pair [0, 1], indicates that to take course 0 you
+have to first take course 1.
+
+Return true if you can finish all courses. Otherwise, return false.
+
+ 
+
+Example 1:
+
+Input: numCourses = 2, prerequisites = [[1,0]]
+Output: true
+Explanation: There are a total of 2 courses to take. 
+To take course 1 you should have finished course 0. So it is possible.
+
+Example 2:
+
+Input: numCourses = 2, prerequisites = [[1,0],[0,1]]
+Output: false
+Explanation: There are a total of 2 courses to take. 
+To take course 1 you should have finished course 0, and to take
+course 0 you should also have finished course 1. So it is impossible.
+
+ 
+
+Constraints:
+
+	• 1 <= numCourses <= 2000
+
+	• 0 <= prerequisites.length <= 5000
+
+	• prerequisites[i].length == 2
+
+	• 0 <= ai, bi < numCourses
+
+	• All the pairs prerequisites[i] are unique.
+"""
+
+class Solution:
+    def canFinish(self, numCourses: int, prerequisites: list[list[int]]) -> bool:
+