/in/foo.cc: In function 'int main()':
/in/foo.cc:16:15: warning: 'max' may be used uninitialized [-Wmaybe-uninitialized]
   16 |         cout<<max;
      |               ^~~
/in/foo.cc:4:10: note: 'max' was declared here
    4 | {  int n,max;
      |          ^~~