03_MinimalAndMaximal

using System;

/*
 * 3. Write a program that reads from the console a sequence of N integer
 * numbers and returns the minimal and maximal of them.
 */
class MinimalAndMaximal
{
    static void Main()
    {
        int n;
        int num;
        int min = int.MinValue;
        int max = int.MaxValue;

        Console.WriteLine("How many numbers you will enter?");
        string str = Console.ReadLine();

        if (!int.TryParse(str, out n))
        {
            Console.WriteLine("Invalid number: {0}", str);
        }
        else
        {
            for (int i = 1; i <= n; i++)
            {
                Console.WriteLine("Please enter a number:");
                string strEnter = Console.ReadLine();

                if (!int.TryParse(strEnter, out num))
                {
                    Console.WriteLine("Invalid number: {0}", strEnter);
                }
                else
                {
                    if (i == 1)
                    {
                        min = num;
                        max = num;
                    }

                    if (num < min)
                    {
                        min = num;
                    }

                    if (num > max)
                    {
                        max = num;
                    }
                }
            }

            Console.WriteLine("The min number is: {0}", min);
            Console.WriteLine("The max number is: {0}", max);
        }
    }
}