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- Prepare
- Data Structures
- Arrays
- Left Rotation

# Left Rotation

# Left Rotation

A *left rotation* operation on an array of size shifts each of the array's elements unit to the left. Given an integer, , rotate the array that many steps left and return the result.

**Example**

After rotations, .

**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 , the number of integers, and , the number of left rotations to perform.

The second line contains space-separated integers that describe .

**Constraints**

**Sample Input**

```
5 4
1 2 3 4 5
```

**Sample Output**

```
5 1 2 3 4
```

**Explanation**

To perform left rotations, the array undergoes the following sequence of changes: