Example 65: Rotate an Array

Problem

Write a function that rotates left the contents of a 1D array of integers by the desired number of places.

Example

Suppose an array named arr contains the following elements:

arr[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }

The following table shows the output array once it has been rotated by k elements.

Input (arr, size, k)	Output
arr, 10, 2	3, 4, 5, 6, 7, 8, 9, 10, 1, 2
arr, 10, 5	6, 7, 8, 9, 10, 1, 2, 3, 4, 5
arr, 10, 10	1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Demonstration