Grokking 75: Top Coding Interview Questions
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Problem Statement

You have to complete a numCourses number of courses, labeled from 0 to numCourses - 1. You are given an array prerequisites where prerequisites[i] = [a<sub>i</sub>, b<sub>i</sub>] indicates that you must complete course b<sub>i</sub> first if you want to complete course a<sub>i</sub>.

Return true if it's possible to finish all the courses given these prerequisites. Otherwise, return false.

Examples

Example 1:

  • Input: numCourses = 3, prerequisites = [[2, 0], [2, 1]]
  • Expected Output: true

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