06. MaxSumKElements

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;


class kElementsMaxSum
{
    static void Main()
    {
        int sizeOfArray ;
        int kElements;

        do
        {
            Console.WriteLine("Please enter the N number of elements in your array:");
            sizeOfArray = int.Parse(Console.ReadLine());
            Console.WriteLine("Please enter the K number of elements \n,to search their max sum:");
            kElements = int.Parse(Console.ReadLine());
        }
        while (kElements > sizeOfArray || kElements <= 0 || sizeOfArray <= 0);

        int[] Array = new int[sizeOfArray];
        int currentSum = 0;
        int maxSum = int.MinValue;
        int currentLen = 0;
        int lastPositionMaxSumElement=0;

        for (int i = 0; i < sizeOfArray; i++)
        {
            Console.WriteLine("Please enter the elements for the array:");
            Array[i] = int.Parse(Console.ReadLine());

                    currentSum += Array[i];
                    currentLen++;

                if (kElements==currentLen)
                {
                    if (currentSum > maxSum)
                    {
                        maxSum = currentSum;
                        lastPositionMaxSumElement = i;
                    }

                    currentLen = kElements-1;
                    currentSum = currentSum-Array[i-kElements+1] ;
                }
        }
        Console.WriteLine("The max sum of {0} elements is:{1}", kElements, maxSum);
        Console.Write("The elements are: {");

        for (int i = lastPositionMaxSumElement - kElements + 1; i <= lastPositionMaxSumElement; i++)
        {
            if (i == lastPositionMaxSumElement)
            {
                Console.WriteLine(Array[i] + "}");
            }
            else
            {
                Console.Write(Array[i] + ", ");
            }
        }
    }
}