Update DFS to use set #11
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msambol
reviewed
Mar 27, 2024
search/depth_first_search.py
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msambol
reviewed
Mar 27, 2024
msambol
requested changes
Mar 27, 2024
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Changing
visitedfrom a list to a set changes then not in visitedline to O(1) time instead of O(n), because it replaces a linear scan (in the case of a list) to a hash lookup (in the case of a set) which is O(1) time.ref: #9