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Solution: All Paths From Source to Target

Explore how to use depth-first search combined with backtracking to find every possible path from the source node to the target node in a directed acyclic graph. This lesson teaches you to implement recursive traversal and path tracking, ensuring all valid routes are found while avoiding cycles. You will gain an understanding of the solution's time and space complexity and how backtracking ensures efficient exploration.

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 ...