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Grokking the Coding Interview Patterns

Course Schedule II

Understand how to use topological sorting to solve course scheduling problems with prerequisites. Learn to identify valid sequences or detect cycles that make completion impossible, enhancing your problem-solving skills in dependency-based coding challenges.

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Statement

You are given n courses, labeled from 0 to n - 1. Some courses have prerequisites, which are provided as a list of pairs: prerequisites[i] =[a,b]= [a, b]. To take course aa, you must first complete course bb ...