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Grokking the Coding Interview Patterns in Go

Solution: Longest Cycle in a Graph

Explore how to identify the longest cycle in a directed graph by traversing paths, tracking visit steps with counters, and detecting revisited nodes to calculate cycle length efficiently in Go.

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Statement

You are given a directed graph with n nodes, labeled from 0 to n - 1. Each node in the graph has at most one outgoing edge.

The graph is described using a 0-indexed integer array edges of length n, where:

  • edges[i] represents a directed edge from node i to node edges[i]. ...