mergesortedlists

Merge two sorted lists

https://leetcode.com/problems/merge-two-sorted-lists/

Example 1

Input: l1 = [1,2,4], l2 = [1,3,4]

Output: [1,1,2,3,4,4]

Example 2

Input: l1 = [], l2 = []

Output: []

Example 2

Input: l1 = [], l2 = [0]

Output: [0]