Techieebytes

Solution for hackerRank problem Left Rotation in Python Problem : A  left rotation  operation on an array of size n  shifts each of the array's elements 1  unit to the left. Given an integer,d , rotate the array that many steps left and return the result. Example d = 2 arr = [1,2,3,4,5] After 2 rotations, arr' = [3,4,5,1,2]. Function Description Complete the  rotateLeft  function in the editor below. rotateLeft  has the following parameters: int d:  the amount to rotate by int arr[n]:  the array to rotate Returns int[n]:  the rotated array Input Format The first line contains two space-separated integers that denote n , the number of integers, and d , the number of left rotations to perform. The second line contains  n space-separated integers that describe arr[] . Constraints 1<=n<= 10 5 1<=d<=n 1<=a[i]<=10 6 Sample Input 5 4 1 2 3 4 5 Sample Output 5 1 2 3 4 Explanation To perform d=4  left rotations, the array undergoes the following sequence of changes: [1