//Programmer: Matthew Kulas

//Date: Start: March 8th, End: March 9th

//Project: U4 A2 - Greatest Number

//Description: Create a program using if structures to determine the greatest and least number given by the user. 

​

​

​

using System;

​

public class Program

{

    public static void Main()

    {

        //asks the user for 4 numbers and sets their number as nuam

        Console.WriteLine("Enter in your first number:");

        double num1 = Convert.ToDouble(Console.ReadLine()); 

​

        Console.WriteLine("Enter in your second number:");

        double num2 = Convert.ToDouble(Console.ReadLine()); 

​

        Console.WriteLine("Enter in your third number:");

        double num3 = Convert.ToDouble(Console.ReadLine()); 

​

        Console.WriteLine("Enter in your fourth number:");

        double num4 = Convert.ToDouble(Console.ReadLine());     

​

        // for greatest number

        // declares variables to find the greatest number

        double max1; 

        double max2;

        double greatest; 

​

        // greatest number out of num1 and num2 and set it as max1

        if (num1 > num2)

        {

        max1 = num1;

        }

        else

        {

        max1 = num2;

        }

        // greatest number out of num3 and num4 and set it as max2

        if (num3 > num4)

        {

        max2 = num3;

        }

        else

        {

        max2 = num4;

        }

        // greatest number out of max1 and max2 and set it as greatest

        if (max1 > max2)

        {

        greatest = max1;

        }

        else

        {

        greatest = max2;

        }

        Console.WriteLine(greatest + " is greatest."); // display the greatest number

        // for least number

        // declare variables to find the least number

        double min1;

        double min2;

        double least; 

​

        // least  number out of num1 and num2 and set it as min1

        if (num1 < num2)

        {

        min1 = num1;

        }

​

        else

        {

        min1 = num2;

        }

        // least  number out of num3 and num4 and set it as min2

        if (num3 < num4)

        {

        min2 = num3;

        }

        else

        {

        min2 = num4;

        }

        // least  number out of nmin1 and min2 and set it as least

        if (min1 < min2)

        {

        least = min1;

        }

        else

        {

        least = min2;

        }

        Console.WriteLine(least + " is least."); // display the least number

    //(Another way of doing it) 

    //Console.WriteLine("Enter in your first number:");

    //double num1 = Convert.ToDouble(Console.ReadLine());   

    //Console.WriteLine("Enter in your second number:");

    //double num2 = Convert.ToDouble(Console.ReadLine());   

    //Console.WriteLine("Enter in your third number:");

    //double num3 = Convert.ToDouble(Console.ReadLine());   

    //Console.WriteLine("Enter in your fourth number:");

    //double num4 = Convert.ToDouble(Console.ReadLine());   

    //if (num1 >= num2 && num1 >= num3 && num1 >= num4)

    //{

    //Console.WriteLine(num1 + " is largest");  

    //} 

    //else if (num2 >= num1 && num2 >= num3 && num2 >= num4)

    //{

    //Console.WriteLine(num2 + " is largest");  

    //}     

    //else if (num3 >= num1 && num3 >= num2 && num3 >= num4)

    //{

    //Console.WriteLine(num3 + " is largest");  

    //}     

    //else 

    //{

    //Console.WriteLine(num4 + " is largest");  

    //} 

    //if (num1 <= num2 && num1 <= num3 && num1 <= num4)

    //{

    //Console.WriteLine(num1 + " is smallest"); 

    //} 

    //else if (num2 <= num1 && num2 <= num3 && num2 <= num4)

    //{

    //Console.WriteLine(num2 + " is smallest"); 

    //}     

    //else if (num3 <= num1 && num3 <= num2 && num3 <= num4)

    //{

    //Console.WriteLine(num3 + " is smallest"); 

    //}     

    //else 

    //{

    //Console.WriteLine(num4 + " is smallest"); 

    //}     

    }

}