/in/foo.cc: In function 'int main()':
/in/foo.cc:24:17: warning: 'max' may be used uninitialized [-Wmaybe-uninitialized]
   24 |                 if (a[k] == max)        num++;
      |                 ^~
/in/foo.cc:14:13: note: 'max' was declared here
   14 |         int max;
      |             ^~~