Codility Lesson 2-1 Arrays

CyclicRotation.cs

using System;
using System.Linq;
// you can also use other imports, for example:
// using System.Collections.Generic;

// you can write to stdout for debugging purposes, e.g.
// Console.WriteLine("this is a debug message");

class Solution {
    public int[] solution(int[] A, int K) {
        if (A == null || A.Length == 0) return A;
        
        var B = A.ToList();
        
        for(int i=0; i<K; i++){
            var index = B.Count - 1;
            var botItem = B.ElementAt(index);
            B.RemoveAt(index);
            B.Insert(0, botItem);
        }
        
        return B.ToArray();
        // write your code in C# 6.0 with .NET 4.5 (Mono)
    }
}