Loading docs/math/du-sieves.md +1 −2 Original line number Diff line number Diff line Loading @@ -70,7 +70,6 @@ $$ ## 【例 1】模板 ??? note " [P4213【模板】杜教筛（Sum）](https://www.luogu.org/problemnew/show/P4213)" 题目大意：求 $S_1(n)= \sum_{i=1}^n \mu(i)$ 和 $S_2(n)= \sum_{i=1}^n \varphi(i)$ 的值， $n\le 2^{31} -1$ 。 ### 求解 $\mu$ 前缀和 Loading Loading
docs/math/du-sieves.md +1 −2 Original line number Diff line number Diff line Loading @@ -70,7 +70,6 @@ $$ ## 【例 1】模板 ??? note " [P4213【模板】杜教筛（Sum）](https://www.luogu.org/problemnew/show/P4213)" 题目大意：求 $S_1(n)= \sum_{i=1}^n \mu(i)$ 和 $S_2(n)= \sum_{i=1}^n \varphi(i)$ 的值， $n\le 2^{31} -1$ 。 ### 求解 $\mu$ 前缀和 Loading
