摘要: #include<iostream>#include<cstdio>#include<cstring>using namespace std;typedef long long ll;const ll M=200907LL;ll a,b,c,d,k,res;ll mypow(ll x,ll y){ 阅读全文
posted @ 2019-12-24 20:21 难书 阅读(212) 评论(0) 推荐(0) 编辑