摘要：今天考试了, 考了好几道题 依次为: 矩阵乘法 代码: #include <bits/stdc++.h> #define int long long using namespace std; const int N = 502, mod = 1e9+7; int n, p, m; int f1[N] 阅读全文

摘要：There is three topics first is square the topic is a \(dfs\) we search the any point into any square the 'in' function is to judge the point whether i 阅读全文