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depth-first search

depth-first search in Technology

A graph search algorithm which extends the current path as far as possible before backtracking to the last choice point and trying the next alternative path. Depth-first search may fail to find a solution if it enters a cycle in the graph. This can be avoided if we never extend a path to a node which it already contains.
Opposite of breadth first search. See also iterative deepening.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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