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Grokking the Coding Interview Patterns in JavaScript

Solution: Parallel Courses III

Discover how to calculate the minimum months required to finish a set of courses with prerequisites by applying topological sorting on a directed acyclic graph. This lesson teaches you to build dependency graphs, manage in-degree counts, and use a queue to process courses efficiently. You'll understand how to update completion times and solve scheduling problems relevant for coding interviews.

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Statement  

You are tasked with determining the minimum time required to complete a set of courses, given their prerequisite relationships and individual durations.

There are n courses labeled from 1 to n. The prerequisite relationships between these courses are provided as a 2D integer array relations, where each entry relations[j]=[prevCoursej,nextCoursej]\text{relations}[j] = [\text{prevCourse}_j, \text{nextCourse}_j] ...