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Grokking the Coding Interview Patterns in Go

Solution: Parallel Courses III

Understand how to solve dependency scheduling problems by applying topological sort to a directed acyclic graph in Go. Learn to calculate the minimum time to complete courses with prerequisites by managing dependencies and updating completion times. This lesson helps you implement an efficient algorithm to process course schedules and handle parallel execution when prerequisites are met.

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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] ...