using System;

namespace Lab
{
    public static class ArrFix
    {
        public static float[] AntiAlising(float[] arr)
        {
            int N = arr.Length - 1;

            arr[0] = (arr[0] + arr[1]) / 2;
            arr[N] = (arr[N] + arr[N - 1]) / 2;
            
            for (int i = 1; i < N; i++)
                arr[i] = (arr[i - 1] + 2 * arr[i] + arr[i + 1]) / 4;

            return arr;
        }
    }
}