/in/foo.cc: In function 'int main()':
/in/foo.cc:14:21: warning: argument to 'sizeof' in 'void* memset(void*, int, size_t)' call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
  memset(you,0,sizeof(you));
                     ^
/in/foo.cc:10:6: warning: unused variable 'count' [-Wunused-variable]
  int count = 0,num;
      ^~~~~
/in/foo.cc:13:23: warning: 'n' is used uninitialized in this function [-Wuninitialized]
  int *you = new int[n + 2];
                     ~~^~~