/in/foo.cc: In function 'int main()':
/in/foo.cc:20:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int i = 1; i <= col; i++)
     ^~~
/in/foo.cc:23:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for (int k = 1; k <= col; k++)
  ^~~