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Solution: All Paths From Source to Target

Explore how to find all possible paths from the source node to the target node in a directed acyclic graph using depth-first search combined with backtracking. Understand how to recursively explore neighbors, track current paths, and backtrack safely to discover every valid route without duplication. Learn the time and space complexity considerations for this approach.

Statement

You are given a directed acyclic graph (DAG) with nn nodes, labeled from 00 to n1n - 1. The graph is represented as an adjacency list, where graph[i] is a list of all nodes to which node i has a directed edge to.

Your task is to find all possible paths from node 0 ...