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Course Schedule (LeetCode 207) | Interview Essential | BFS, Queue, Cycle in a directed graph

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Sep 2, 2025
18:41

๐Ÿ‘‰ ๐Ÿ‘‰ Invaluable problem navigator: https://topmate.io/nikoo28/1672249?utm_source=public_profile&utm_campaign=nikoo28 Join this channel to get access to perks: https://www.youtube.com/channel/UCT-S2ngqEBoYCM5UKuNeELg/join Actual Problem: https://leetcode.com/problems/course-schedule/description/ Chapters: 00:00 - intro 00:38 - Problem Statement 02:09 - A valid case 03:48 - Invalid case 05:08 - Simplified problem 05:58 - Brute Force Approach (DFS) 07:53 - Optimized Method (BFS with Queue) 14:59 - Dry run of Code 16:54 - Final Thoughts ๐Ÿ“š Links to topics I talk about in the video: BFS Pattern: https://youtu.be/ahGogUuCpuw Breadth First Search: https://youtu.be/zfwHQNqszP4 ๐Ÿ“˜ A text based explanation is available at: https://studyalgorithms.com Code on Github: https://github.com/nikoo28/java-solutions/blob/master/src/main/java/leetcode/medium/CourseSchedule.java Test-cases on Github: https://github.com/nikoo28/java-solutions/blob/master/src/test/java/leetcode/medium/CourseScheduleTest.java ๐Ÿ”— To see more videos like this, you can show your support on: https://www.buymeacoffee.com/studyalgorithms ๐Ÿ’ป Get Social ๐Ÿ’ป Follow on Facebook at: https://www.facebook.com/studyalgos Subscribe to RSS feeds: https://studyalgorithms.com/feed/ Join fan mail: http://eepurl.com/g9Dadv #leetcode #programming #interview

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Course Schedule (LeetCode 207) | Interview Essential | BFS, Queue, Cycle in a directed graph | NatokHD