foo.cc: In function ‘int A(int, int)’:
foo.cc:15:16: warning: ‘max’ may be used uninitialized [-Wmaybe-uninitialized]
   15 |         return max;
      |                ^~~
foo.cc:5:13: note: ‘max’ was declared here
    5 |         int max,t;
      |             ^~~
foo.cc: In function ‘int main()’:
foo.cc:45:10: warning: ‘max’ may be used uninitialized [-Wmaybe-uninitialized]
   45 |         b=b/t;
      |         ~^~~~
foo.cc:5:13: note: ‘max’ was declared here
    5 |         int max,t;
      |             ^~~