Arrays - 04_MaximalSequence

using System;

/*
 * 4. Write a program that finds the maximal sequence of equal elements in an array.
 * Example: {2, 1, 1, 2, 3, 3, 2, 2, 2, 1} -> {2, 2, 2}.
 */
class MaximalSequence
{
    static void Main()
    {
        int[] arr = { 2, 1, 1, 2, 3, 4, 4, 3, 2, 1 };

        int start = arr[0];
        int length = 1;

        int bestStart = arr[0];
        int bestLength = length;

        for (int i = 1; i < arr.Length; i++)
        {
            if (arr[i] == start)
            {
                length++;

                if (length > bestLength)
                {
                    bestLength = length;
                }

                bestStart = i;
            }
            else
            {
                start = arr[i];
                length = 1;
            }
        }

        Console.WriteLine("The equal element is {0}", arr[bestStart]);
        Console.WriteLine("And the max length is {0}", bestLength);
    }
}