/in/foo.cc: In function 'int main()':
/in/foo.cc:10:7: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
       for(int j=1;j<=m;j++)
       ^~~
/in/foo.cc:13:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  cout << v[n][m] << endl; 
  ^~~~