Program for array left rotation by d positions

A left rotation operation on an array shifts each of the array's elements 1 unit to the left. For example, if 2 left rotations are performed on array [1,2,3,4,5], then the array would become [3,4,5,1,2]. Note that the lowest index item moves to the highest index in a rotation. This is called a circular array. Given an array a of n integers and a number, d, perform d left rotations on the array. R