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出典:Wiktionary
Named for Peter Fenwick who described the concept in 1994.
Fenwick tree (複数形 Fenwick trees)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/06 15:36 UTC 版)
A Fenwick tree (also known as binary indexed tree) is a data structure that can be used to implement cumulative frequency tables. It was invented by Peter Fenwick in 1994.
fenwick tree