MaximalIncreasingSequence

using System;
class Problem5MaxIncreasingSequence
{
    static void Main()
    {
        int size = int.Parse(Console.ReadLine());
        int[] arr = new int[size];
        int max = 1;
        int count = 1;
        int start = 0;
        for (int i = 0; i < arr.Length; i++)
        {
            arr[i] = int.Parse(Console.ReadLine());
        }
        for (int i = 0; i < arr.Length-1; i++)
        {
            if(arr[i]+1 == arr[i+1])
            {
                count++;
                if (count > max)
                {
                    max = count;
                    start = arr[i+1];
                }
            }
            else
            {
                count = 1;
            }
        }
        if (max == 1)
        {
            Console.WriteLine("This sequence doesn`t have a maximal sequence of increasing elements. ");
        }
        else
        {
            Console.Write("The maximal sequence of increasing elements is: " + max + ": ");
            for (int i = max; i > 0; i--)
            {
                Console.Write((start-i + 1) + " ");
            }
            Console.WriteLine();
        }
    }
}