Merge Two Sorted Lists
You are given the heads of two sorted linked lists list1 and list2. Merge the two lists into one sorted list. The list should be made by splicing together the nodes of the first two lists.
Merge Two Sorted Lists

You are given the heads of two sorted linked lists list1 and list2. Merge the two lists into one sorted list. The list should be made by splicing together the nodes of the first two lists.

Example 1:
Input: {"list1":[1,2,4],"list2":[1,3,4]}
Output: [1,1,2,3,4,4]
Input
arr ={"list1":[1,2,4],"list2":[1,3,4]}

Init dummy and tail

tail ↓

0

NULL
l1 ↓

1

2

4

NULL
l2 ↓

1

3

4

NULL
Variables
No variables to display
DepthFunction Call
Stack empty
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