LCA 기반 갱신
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LCA 기반 갱신
[Algorithm] C++ 백준 15521번 : Revenge of the Broken Door
![[Algorithm] C++ 백준 15521번 : Revenge of the Broken Door](/post/algorithm/2025-08-12-boj-15521-revenge-of-the-broken-door-cpp-solution/wordcloud_hu_faa1bd80d20ea1e1.png)