/in/foo.cc: In function 'int main()':
/in/foo.cc:23:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i=1;i<=m;i++)
  ^~~
/in/foo.cc:37:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   for (int j=1;j<=n;j++)
   ^~~