Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
83627 陈俊洁 矩阵对角线 C++ Compile Error 0 MS 0 KB 329 2024-07-14 16:04:50

Tests(0/0):

Code:

cin>>n>>m; int a[n][n]; 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++){ printf("%5d",a[i][j]); } cout<<endl; } return 0;

Run Info:

Main.cc:1:3: error: 'cin' does not name a type
   cin>>n>>m;  
   ^
Main.cc:2:9: error: 'n' was not declared in this scope
   int a[n][n];  
         ^
Main.cc:2:12: error: 'n' was not declared in this scope
   int a[n][n];  
            ^
Main.cc:3:3: error: expected unqualified-id before 'for'
   for(int i=0;i