Rotate Array

Main.kt

/**
 * Given an array, rotate the array to the left by k steps where k is non-negative
 *
 * Input: [1,2,3,4,5,6,7] ans k = 2
 * Output: [3,4,5,6,7,1,2]
 */
fun main(){
    val array = intArrayOf(1,2,3,4,5,6,7)
    val k = 3
    print(array.leftShit(k).asList())
}

fun IntArray.leftShit(k:Int):IntArray{
    var rotateBy = k
    if(k>size)
        rotateBy %=size
    var shiftedArray = this.copyOf()
    repeat(rotateBy){
        shiftedArray = intArrayOf(*shiftedArray.copyOfRange(1, size),shiftedArray.first())
    }
    return shiftedArray
}