What are some strategies to avoid infinite loops in DFS?

  • Limiting the search depth
  • Maintain a visited set
  • Resetting the stack
  • Use a timestamp
To avoid infinite loops in DFS, maintaining a visited set is a crucial strategy. This set keeps track of the visited vertices, preventing revisiting the same vertex during the traversal. By marking and checking visited vertices, the algorithm ensures that each vertex is explored only once, effectively avoiding infinite loops. This approach is fundamental for the correct functioning of DFS in scenarios where revisiting nodes must be prevented.
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