#ifndef S0019_REMOVE_NTH_NODE_FROM_END_OF_LIST_HPP
#define S0019_REMOVE_NTH_NODE_FROM_END_OF_LIST_HPP

struct ListNode {
  int val;
  ListNode* next;
  ListNode() : val(0), next(nullptr) {}
  ListNode(int x) : val(x), next(nullptr) {}
  ListNode(int x, ListNode* next) : val(x), next(next) {}
};

class S0019 {
 public:
  ListNode* removeNthFromEnd(ListNode* head, int n);
};

#endif