Challenge: Right Rotate the Array by One Index

Problem Statement #

In this problem, you have to implement the void rotateArray(int[] arr) method, which takes an arr and rotate it right by 1. This means that the right-most elements will appear at the left-most position in the array.

Method Prototype #

void rotateArray(int[] arr)

Output #

Array rotated by one element from right to left

Sample Input #

arr = {1, 2, 3, 4, 5}

Sample Output #

arr = {5, 1, 2, 3, 4}