Node Direction Swap (Medium)

Back

CodeDash

Node Direction Swap

Medium

Linked List

In "Node Direction Swap", a singly linked sequence is represented as an array in input order.

Return the sequence in reversed order as if the linked list pointers were fully reversed.

Example 1

Input:head = [13,14,15,16,17,18]

Output:[18,17,16,15,14,13]

For input head = [13,14,15,16,17,18], reversing the node direction makes the values appear in reverse order, so the output is [18,17,16,15,14,13]. Therefore, return [18,17,16,15,14,13].

Example 2

Input:head = [26,27,28,29]

Output:[29,28,27,26]

For input head = [26,27,28,29], reversing the node direction makes the values appear in reverse order, so the output is [29,28,27,26]. Therefore, return [29,28,27,26].

Constraints

0 <= head.length <= 5000
-5000 <= head[i] <= 5000

solution.js

Test Cases (2)

Test Case 1

Input:

[13,14,15,16,17,18]

Expected Output:

[18,17,16,15,14,13]

Test Case 2

Input:

[26,27,28,29]

Expected Output:

[29,28,27,26]