Main.cc: In function ‘int main()’:
Main.cc:17:12: error: invalid types ‘int[int]’ for array subscript
17 | cin>>a[i][j];
| ^
Main.cc:25:10: error: invalid types ‘int[int]’ for array subscript
25 | if(a[i][j]!=0&&a[i][j]!=1)
| ^
Main.cc:25:22: error: invalid types ‘int[int]’ for array subscript
25 | if(a[i][j]!=0&&a[i][j]!=1)
| ^
Main.cc:12:6: warning: unused variable ‘n’ [-Wunused-variable]
12 | int n[a][b];
| ^