foo.cc: In function ‘int main()’:
foo.cc:10:9: warning: ‘max’ may be used uninitialized [-Wmaybe-uninitialized]
   10 |         if (x>max)
      |         ^~
foo.cc:5:13: note: ‘max’ was declared here
    5 |     int n,x,max,cnt=0;
      |             ^~~