Graph Traversal

overview

Summary

Graph traversal is the process of visiting vertices and edges of a graph in a systematic order. The two core strategies are breadth-first search and depth-first search, each uncovering structure in different ways. Traversal underpins many tasks like shortest paths in unweighted graphs, cycle detection, and topological sorting. Efficient implementations hinge on the right data structures, careful visited tracking, and understanding time and space costs.