haar_lib::math::factorize::sieve

Struct FactorizeSieve

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pub struct FactorizeSieve { /* private fields */ }
Expand description

前計算による素因数分解

Space complexity $O(n)$

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impl FactorizeSieve

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pub fn new(n: usize) -> Self

n以下の非負整数を素因数分解できるFactorizeSieveを構築する。

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pub fn factorize(&self, n: usize) -> Vec<usize>

nの素因数を列挙する。

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