网站介绍:2154: Crash的数字表格思路:莫比乌斯反演+整除分块代码:#pragma GCC optimize(2)#pragma GCC optimize(3)#pragma GCC optimize(4)#include<bits/stdc++.h>using namespace std;#define y1 y11#define fi first#de..._$cros22cbopz$
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