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Solution: Longest Cycle in a Graph

Explore how to identify and measure the longest cycle in a directed graph where each node has at most one outgoing edge. This lesson guides you through a step-by-step traversal method that tracks node visits and detects cycles by comparing visit steps. Understand the algorithm’s process, time and space complexity, and how to implement it effectively to solve graph cycle problems.

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]. ...