Graphs pattern
Course Schedule II
Given a number of courses and their prerequisite pairs, return an ordering in which all courses can be taken. If no valid ordering exists (the graph has a cycle), return an empty list. Watch it run step by step, then write your own pseudocode and get it checked by AI.
- LeetCode 210
- Medium
- 1 approach
Sign in with Google or GitHub and you land straight on this page. DSA comes with the all labs plan and every ChaiCode batch.
GraphsLeetCode 210
Medium
The approach
- 01 Kahn's algorithm, collect the pop order O(V + E)O(V + E) space
What you will learn
- How to read Course Schedule II and spot the graphs pattern in it
- Kahn's algorithm, collect the pop order: O(V + E) time, O(V + E) space
- The pseudocode for each approach, its line lit as the animation runs
- Practice: write your own pseudocode and get it checked
More Graphs
- Shortest Path AlgorithmsConcept
- Network Delay TimeLC 743 · Medium
- Cheapest Flights Within K StopsLC 787 · Medium
- Path With Minimum EffortLC 1631 · Medium
- Find the City With Fewest ReachableLC 1334 · Medium
- Union-Find (DSU)Concept
- Number of Connected ComponentsLC 323 · Medium
- Redundant ConnectionLC 684 · Medium
See Course Schedule II run, step by step
Sign in and this page opens on the animation, with all 9 Graphs problems beside it.
DSA comes with the all labs plan and every ChaiCode batch.