摘要: 1 #define HAVE_STRUCT_TIMESPEC 2 #include<bits/stdc++.h> 3 using namespace std; 4 const long long mod = 998244353; 5 long long jiechen[400007],niyuan[ 阅读全文
posted @ 2020-03-11 08:39 sewage 阅读(149) 评论(0) 推荐(0) 编辑