摘要: #include<bits/stdc++.h> using namespace std; typedef long long ll; const ll MAXN=1<<21,MOD1=998244353,MOD2=1004535809,MOD3=469762049; inline ll fpow(l 阅读全文
posted @ 2020-09-12 12:56 JustinRochester 阅读(179) 评论(0) 推荐(0) 编辑