/in/foo.cc: In function 'void solve()':
/in/foo.cc:76:30: warning: 'ans2' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d\n%d\n",ans1,ans2);
                              ^
/in/foo.cc:76:30: warning: 'ans1' may be used uninitialized in this function [-Wmaybe-uninitialized]