题目链接 题意: 其中d(n)代表n的约数个数 思路: #include <bits/stdc++.h> using namespace std; #define int long long const int N = 5e4 + 5; int n, m, T, pr[N], mu[N], d[N] Read More
posted @ 2020-10-05 20:28 Ldler Views(92) Comments(0) Diggs(0) Edit
题目链接 题意: 思路: #include <bits/stdc++.h> using namespace std; #define LL long long const int N = 1e7; const int mod = 20101009; int n, m, mu[N + 5], p[N Read More
posted @ 2020-10-05 17:41 Ldler Views(100) Comments(0) Diggs(0) Edit