HDU - 2204 Eddy's愛好 （容斥原理）

#include<bits/stdc++.h> using namespace std; typedef long long ll; ll prim[20] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61}; int main() { ll n, i, j, k, ans; while(scanf("%lld", &n) !

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