LCA – Lowest Common Ancestor
15:56
YouTubeErrichto Algorithms
LCA – Lowest Common Ancestor
Tutorial on LCA algorithm. We use Binary Lifting to get O(N*log(N)) preprocessing and O(log(N)) to find the lowest common ancestor of two nodes in a tree. Binary Lifting video https://youtu.be/oib-XsjFa-M SPOJ problem https://www.spoj.com/problems/LCASQ/ code https://github.com/Errichto/youtube/blob/master/lca.cpp Two homework problems: 1 ...
75.3K viewsApr 6, 2021
Lowest Common Ancestor Algorithms
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