Very good share - as this is very important task to understand! Here is my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
class MinMaxSumAndAverageOfNNumbers
{
static void Main()
{
int n = int.Parse(Console.ReadLine());
int[] array = new int[n];
for (int i = 0; i < n; i++)
{
array[i] = int.Parse(Console.ReadLine());
}
Console.WriteLine("min = {0}", array.Min());
Console.WriteLine("max = {0}", array.Max());
Console.WriteLine("sum = {0}", array.Sum());
Console.WriteLine("avg = {0:F2}", array.Average());
}
}