BZOJ 2820 YY的GCD-CSDN博客网友收藏

BZOJ 2820 YY的GCD-CSDN博客

2820 YY的GCD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#define ......
阅读全文