leetcode/include/s0024_swap_nodes_in_pairs.hpp
2022-11-30 18:20:36 +08:00

18 lines
344 B
C++

#ifndef S0024_SWAP_NODES_IN_PAIRS_HPP
#define S0024_SWAP_NODES_IN_PAIRS_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 S0024 {
public:
ListNode* swapPairs(ListNode* head);
};
#endif