zadacha 4

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

namespace ConsoleApp42
{
    class Program
    {
        static void Main(string[] args)
        {
            double max = 0,sum = 0,av = 0;
            int i, j, red = 0,br = 0;
            double[,] array = new double[5, 4];
            for (i = 0; i < 5; i++)
                for (j = 0; j < 4; j++)
                    array[i, j] = double.Parse(Console.ReadLine());
            for (i = 0; i < 5; i++)
            {
                for (j = 0; j < 4; j++)
                    Console.Write(array[i, j] + " ");
                Console.WriteLine();
            }
            for (i = 0; i < 5; i++)
            {
                if (array[i, 0] > max)
                {
                    max = array[i, 0];
                    red = i;
                }
            }
            Console.WriteLine("max radius: " + max + " na red " + (red+1));
            for (i = 0; i < 5; i++)
            {
                sum = sum + array[i, 2];
            }
            Console.WriteLine("sumata ot licata : " + sum);
            sum = 0;
            for (i = 0; i < 5; i++)
            {
                if (array[i, 0] > 0)
                {
                    br++;
                    sum = sum + array[i, 3];

                }
            }
            av = sum / br;
            Console.WriteLine("av na duljinite e: " + Math.Round(av, 2));



        }

    }
}
/*
 1
 2
 3,14
 6,28
 3,5
 7
 38,47
 21,98
 4
 8
 50,24
 25,12
 0
 0
 0
 0
 2,2
 4,4
 15,20
 13,82
 */