Challenge 8: Right Rotate an Array by One

Problem statement

Implement a function rightRotate(int arr[], int size), which takes an array arr and rotates it right by 1. This means that the rightmost element will appear at the leftmost position in the array.

Input

An array of integers and its size is given.

Output

The given array rotated by 1 is the output.

Sample input

arr = [1,2,3,4,5]

Sample output

arr = [5,1,2,3,4]