Lexicographic breadth-first search (Lex-BFS) is a specific order of traversal used in graph theory, particularly for directed and undirected graphs. It operates similar to a standard breadth-first search (BFS), but incorporates a lexicographic ordering to determine the order in which nodes are explored. ### Key Concepts: 1. **BFS Overview**: In a standard BFS, nodes are explored level by level, starting from a given source node.
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