FirstBiggestThanHisNeighbours

using System;

class FirstBiggestThanHisNeighbours
{
    static void Main()
    {
        int[] arr = { 1, 2, 2, 2, 1, 1, 4 };
        for (int i = 1; i < arr.Length - 1; i++)
        {
            if (CompareNumberAtGivenPosition(arr, i) == 1)
            {
                Console.WriteLine(i);
                break;
            }
            if (i == arr.Length - 2) Console.WriteLine("-1");
        }
    }

    static int CompareNumberAtGivenPosition(int[] arr, int index)
    {
        if ((arr[index - 1] < arr[index]) && (arr[index + 1] < arr[index]))
            return 1;
        else return -1;
    }
}