/in/foo.cc: In function 'int main()':
/in/foo.cc:23:8: warning: unused variable 'max' [-Wunused-variable]
  int n,max=-1,summer;
        ^~~
/in/foo.cc:55:53: warning: 'summer' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<jude[0].name<<endl<<jude[0].sum<<endl<<summer;
                                                     ^