Ascending order

[BIGB185]

I'm doing an assignment for my CSC class and the instructor has asked us to:
1. Ask for three numbers
2. Determine the smallest number
3. Determine the largest number
4. Determine the middle number
5. Output the numbers in ascending order
I went through and did the first 4 but forgot about 5. Now I'm not sure how to write the code so that the numbers come out in ascending order instead of smallest, largest and middle.

Any help is appreciated.

  
/************************** Compiler Directives **********************/

#include <cstdlib>

#include <iomanip>

#include <iostream>
using namespace std;

/**************************** main Function **************************/

int main()

{



//Local variables
int firstNumber;
int secondNumber;
int thirdNumber;
int smallNumber;
int largeNumber;
int middleNumber;


//Prompt user for the three numbers.
	
cout << "Enter the first number \n";
cin >> firstNumber;

cout << "Enter the second number \n";
cin >> secondNumber;

cout << "Enter the third number \n";
cin >> thirdNumber;


//Determine smallest number

//Checking if first number is the smallest

	if (firstNumber <= secondNumber && firstNumber <= thirdNumber)

	{ 
	cout << "Smallest number: " << firstNumber; 
	
	  cout << "\n";
	 } 
	 
//Checking if second number is the smallest
	 
	if (secondNumber <= firstNumber && secondNumber <= thirdNumber)
	 
	 {
	  cout << "Smallest number: " << secondNumber; 
	 
	  cout << "\n";
		 }	
//Checking if third number is the smallest
		 
	if (thirdNumber <= firstNumber && thirdNumber <= secondNumber )	
	
	{
	cout << "Smallest number: " << thirdNumber; 
	 
	 cout << "\n";
		 }	 
		 
//Determine Largest number	

//Checking if first number is the largest	 
		 
		 if(firstNumber >= secondNumber && firstNumber >= thirdNumber)
    {
        cout << "Largest number: " << firstNumber; 
        
        cout << "\n";
    }

//Checking if second number is the largest

    if(secondNumber >= firstNumber && secondNumber >= thirdNumber)
    {
        cout << "Largest number: " << secondNumber;
        
        cout << "\n";
    }

//Checking if third number is the largest

    if(thirdNumber >= firstNumber && thirdNumber >= secondNumber) 
	{
        cout << "Largest number: " << thirdNumber;
        
        cout << "\n";
 	}

//Determine middle number

//Checking if first number is the middle number

	if (secondNumber > firstNumber && firstNumber > thirdNumber || thirdNumber > firstNumber && firstNumber > secondNumber)

	{ 
	cout << "Middle number: " << firstNumber; 
	
	  cout << "\n";
	 } 
	 
//Checking if second number is the middle number 	 
	 
	if (firstNumber > secondNumber && secondNumber > thirdNumber || thirdNumber > secondNumber && secondNumber > firstNumber)
	 
	 {
	  cout << "Middle number: " << secondNumber; 
	 
	  cout << "\n";
		 }	
		 
//Checking if third number is the middle number		 
		 
	if (firstNumber > thirdNumber && thirdNumber > secondNumber || secondNumber > thirdNumber && thirdNumber > firstNumber)
	
	{
	cout << "Middle number: " << thirdNumber; 
	 
	 cout << "\n";
		 }	 
		 
		 
		 
//Indicate to OS successful termination of program 

    return 0; 
   //End main

}

[JLBorges]

#include <iostream>

int main()
{
    // Prompt user for the three numbers.

    int first ;
    int second ;
    int third ;

    std::cout << "Enter three numbers: ";
    std::cin >> first >> second >> third ;

    // rearrange them in order from smallest to largest

    if( second < first )
        { const int temp = first ; first = second ; second = temp ; } // swap them
        // after this, first <= second

    if( third < first )
        { const int temp = first ; first = third ; third = temp ; }
        // after this, first <= third (now, the smallest number is first)

    if( third < second )
        { const int temp = second ; second = third ; third = temp ; }
        // after this, second <= third (now, the largest number is third)

    // print results

    std::cout << "smallest number: " << first << '\n'
              << "  middle number: " << second << '\n'
              << " largest number: " << third << '\n'
              << "numbers in ascending order: "
              << first << ' ' << second << ' ' << third << '\n' ;

    // there is an implicit return 0 ; at the end of main
}

[Handy Andy]

Hello BIGB185,

If you do not want to rewrite your program as JLBorges has suggested you could use what you already have and are not using.

You have defined three variables "smallNumber", "largeNumber" and "middleNumber", but you do not use them.

As an example:

if (firstNumber <= secondNumber && firstNumber <= thirdNumber)
{
	cout << "Smallest number: " << firstNumber;

	smallNumber = firstNumber;

	cout << "\n";
}

The concept of the bold line would need to be adjusted for each if statement and after the last if statement you need a "cout" statement to display the "smallNumber", "largeNumber" and "middleNumber".

I would take a very close at JLBorges's code as it is a more compact way of doing what you did and worth learning.

Hope that helps,

Andy

P.S. Watch your indenting.