21. Merge Two Sorted Lists

题目

Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.

Example :

Input: 1->2->4, 1->3->4
Output: 1->1->2->3->4->4

题目大意

合并 2 个有序链表

解题思路

按照题意做即可。