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This article mainly introduces the principle and difference of depth-first and breadth-first traversal in programming language. In daily operation, it is believed that many people have doubts about the principle and difference of depth-first and breadth-first traversal in programming language. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the question of "the principle and difference of depth-first and breadth-first traversal in programming language". Next, please follow the editor to study!

The non-recursive method of depth-first traversal uses stack; the non-recursive method of breadth-first traversal uses queues.

Depth-first traversal is to deepen each branch to the point where it is impossible to go deep. Specifically, there are pre-order traversal, middle-order traversal, post-order traversal; breadth-first traversal, also known as sequence traversal, traversing from top to bottom.

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