摘要: 1 #include<bits/stdc++.h> 2 using namespace std; 3 typedef long long ll; 4 const int N=2e3+5; 5 const int mod=998244353; 6 ll x[N],y[N],n,k,ans; 7 ll 阅读全文
posted @ 2022-04-05 19:42 matt-11 阅读(37) 评论(0) 推荐(0)