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2020-08-07 17:06:53 +08:00

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# [24. Swap Nodes in Pairs](https://leetcode.com/problems/swap-nodes-in-pairs/description/)
## 题目
Given a linked list, swap every two adjacent nodes and return its head.
You may not modify the values in the list's nodes, only nodes itself may be changed.
Example:
```c
Given 1->2->3->4, you should return the list as 2->1->4->3.
```
## 题目大意
两两相邻的元素,翻转链表
## 解题思路
按照题意做即可。