/in/foo.cc: In function 'int main()':
/in/foo.cc:113:13: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized]
  113 |     cout << ans;
      |             ^~~
/in/foo.cc:27:20: note: 'ans' was declared here
   27 |     int i, t, end, ans;
      |                    ^~~