CROC 2016 - Elimination Round (Rated Unofficial Edition) F - Cowslip Collections 数论 + 容斥
F - Cowslip Collectionshttp://codeforces.com/blog/entry/43868这个题解讲的很好。。。#include<bits/stdc++.h>#define LL long long#define fi first#define se second#define mk make_pair#define P...