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BZOJ 3529: [Sdoi2014]数表-CSDN博客

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3529: [Sdoi2014]数表思路:莫比乌斯反演+整除分块+树状数组维护前缀和代码:#pragma GCC optimize(2)#pragma GCC optimize(3)#pragma GCC optimize(4)#include<bits/stdc++.h>using namespace std;#define y1 y11#define ...