/in/foo.cc: In function 'int main()':
/in/foo.cc:21:21: warning: 'm1' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<h1<<" "<<m1<<" "<<s2<<" ";
                     ^~~
/in/foo.cc:21:12: warning: 'h1' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<h1<<" "<<m1<<" "<<s2<<" ";
            ^~~