/in/foo.cc: In function 'int main()':
/in/foo.cc:15:17: warning: 'cnt' may be used uninitialized [-Wmaybe-uninitialized]
   15 |                 if (cnt >= m)
      |                 ^~
/in/foo.cc:12:24: note: 'cnt' was declared here
   12 |                 int x, cnt;
      |                        ^~~