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Grokking the Coding Interview Patterns in Go

Solution: Parallel Courses III

Explore how to apply topological sort on a directed acyclic graph representing course dependencies to calculate the minimum time required to complete all courses. Learn to build in-degree and adjacency lists, process courses in order, and update completion times efficiently to solve scheduling problems involving prerequisites.

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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] ...