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Course Schedule II

Explore how to determine a valid order for completing courses based on their prerequisites. Understand the use of topological sort to resolve dependencies and detect cycles that make completion impossible. This lesson helps you implement and verify solutions handling course scheduling problems efficiently.

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 ...