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목록fenwick tree (1)
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Fenwick Tree (or Binary Indexed Tree) Python Implementation, 308. Range Sum Query 2D - Mutable
Fenwick Tree (or Binary Indexed Tree) is very efficient in dealing with range queries, especially when elements get updated occasionally. For how it works, refer to the below video. He elaborates on the principle of the tree in a very clean way. https://www.youtube.com/watch?v=CWDQJGaN1gY&t=160s&ab_channel=TusharRoy-CodingMadeSimple Below is the python implementation of it. class Fenwick: """ Py..
Computer Science/Algorithms & Data Structures
2023. 3. 2. 00:16