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Solution: Longest Cycle in a Graph

Explore how to identify and calculate the longest cycle in a directed graph by tracking node visits during traversal. Understand the graph pattern applied here and learn to use step counters effectively to detect cycles and optimize traversal in linear time. This lesson helps you handle graphs where each node can have a single outgoing edge and efficiently find cycles without redundant exploration.

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]. ...