Thread: Need help with a program

"Write a program that asks the user for a series of integers one at a time. When the user enters the integer 0, the program displays the following information.

1) the number of integers in the series (not including zero)
2) the average of the integers
3) the largest integer in the series
4) the smallest integer in the series
5) the range (difference between largest and smallest integer)


My problem is, I don't know what to initialize these int's to to get the above results.

Code:

#include <iostream.h>
#include <string.h>
#include <iomanip.h>

main()
{
int number;
int total;
double average;
int counter;
int largest;
int smallest = 130000;
int range;

do
{
cout << "Enter a series of integers, enter 0 when you're done." << '\n';
cin >> number;

if (number != 0);

           
           
           cout << "The number of integers you entered was" << number << '\n';
           cout << "The average of the integers is" << average << '\n';
           cout << "The largest integer in the series is" << largest << '\n';
           cout << "The smallest integer in the series is" << smallest << '\n';
           cout << "The difference between the largest integer and smallest integer is" << range << '\n';
          } while (number != 0);

           return 0;
}

>> I don't know what to initialize these int's to to get the above results.
Do you know any of them? What you initialize counter to? How do you calculate the average?

I believe I know the largest and smallest. But i'm not sure, the others one i'm clueless. And I forgot what the counters purpose is, the teacher said you needed to have one.

Code:

if (number > largest) largest = number;
if (number < smallest) smallest = number;

Edit, and I believe the range would be :

Code:

range = largest - smallest;

You are also using old headers.

Code:

iostream.h

should be

Code:

iostream

and there is no need for this particular program to have the string and iomanip librarys included either

On a side note, you could call a function(s) to calculate and return the largest / smallest of three entered numbers. Finding the avergage of them is just like nextus told you above.

I got this, but theres two problems. It repeats the same statement everytime you enter a number, and when you enter 0 the program closes.

Code:

#include <iostream.h>
#include <string.h>
#include <iomanip.h>

int main() {
   int number;
   double average;
   double counter = 0; 
   int total = 0;
   int smallest = 130000;
   int largest;
   int range;
  do{
   
   cout << "Please enter a series of numbers, enter 0 to display the information " << '\n';
   cin >> number;
       
   if (number != 0) {
      largest = number;
      smallest = number;
   }
                }
   while (number != 0); {
      counter++;
      average = total/counter;
      if (number > largest) largest = number;
      if (number < smallest) smallest = number;
      range = largest - smallest;
      total += number;
     }
         
     cout << "The number of integers you entered was" << counter << '\n';
     cout << "The average of the integers is" << average << '\n';
     cout << "The largest integer in the series is" << largest << '\n';
     cout << "The smallest integer in the series is" << smallest << '\n';
     cout << "The difference between the largest integer and smallest integer is" << range << '\n';
     return 0;
}

I have to use a DO WHILE loop.