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Grokking the Coding Interview Patterns in C++

Solution: Longest Cycle in a Graph

Explore an efficient approach to find the longest cycle in a directed graph where each node has at most one outgoing edge. Understand how to track visit times and detect cycles during traversal to determine cycle lengths and identify the longest one.

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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]. ...