Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
83635 石晋骁 矩阵对角线 C++ Compile Error 0 MS 0 KB 335 2024-07-14 16:10:56

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ int n,m; cin >> n >> m; for (int i =0;i < n;i++){ for(int j = 0;j < n;j++){ cin >> a[i][j]; if(i == j || i+j == n - 1){ a[i][j] += m; } } } for (int i =0;i < n;i++){ for(int j = 0;j < n;j++){ cout << a[i][j]; } } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:8:11: error: 'a' was not declared in this scope
    cin >> a[i][j];
           ^
Main.cc:16:13: error: 'a' was not declared in this scope
    cout <<  a[i][j];
             ^