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Grokking the Coding Interview Patterns in C#

Paths in Maze That Lead to Same Room

Explore how to identify and count distinct length-three cycles in a maze represented as a graph with rooms and corridors. This lesson helps you understand cycle detection in graphs, interpret problem constraints, and improve problem-solving for graph-based maze questions.

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Statement

A maze consists of nn rooms numbered from 1−n1 - n, and some rooms are connected by corridors. You are given a 2D integer array, corridors, where corridors[i]=[room1,room2]corridors[i] = [room1, room2] indicates that there is a corridor connecting room1room1 and room2room2 ...