/in/foo.cc: In function 'int main()':
/in/foo.cc:21:10: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << m << endl;
          ^
/in/foo.cc:14:12: warning: 'ou' may be used uninitialized in this function [-Wmaybe-uninitialized]
   else ou++;
            ^
/in/foo.cc:13:22: warning: 'ji' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (w[i]%2==1) ji++;
                      ^