Module cd0024_swap_nodes_in_pairs

Swap Nodes in Pairs leetcode: swap_nodes_in_pairs

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:

Given 1->2->3->4, you should return the list as 2->1->4->3.

Structs

ListNode

Functions

swap_pairs

Solutions