Question...!

What 5 numbers? That is, how are they stored? Are you using an array, or are they 5 separate variables, or are you trying to prompt the user for five numbers then determine the largest and smallest from that?

Jul 13, 2012 at 5:24am

Sorry I mean "5 integers". Prompt the user for 5 integers.

Jul 13, 2012 at 5:36am

Ok,
Use a for loop and an array to prompt and store the int's.
Then define two variables, largest and smallest.
Use a second for loop to iterate through the array and compare the current position to the largest encountered number and the smallest encountered number. If the current value is larger than the largest, set the largest to the current. Same logic for the smallest one...

Jul 13, 2012 at 5:46am

Ummmmm ok.... I haven't learn array/loop... I'm like at the beginning of learning C++. The question I asked you was part of my book exericse. :\

Jul 13, 2012 at 5:50am

Hmm,
Are you familiar with variables yet?

Jul 13, 2012 at 5:51am

Yes

Jul 13, 2012 at 5:52am

look what i did.

#include <iostream>
using namespace std;
int main()
{
int integer1,diameter,circumference,area;
cout << "Enter the Radius\n";
cin >> integer1;
circumference = 2 * 3.14 * integer1;
cout << "Circumference: " << circumference << endl;
diameter = 2 * integer1;
cout << "Diameter: " << diameter << endl;
area = 3.14 * (integer1 * integer1);
cout << "Area: " << area << endl;
return 0;
}

Last edited on Jul 13, 2012 at 5:53am

Jul 13, 2012 at 5:56am

Alright.
Try creating three variables, greatest, smallest, and userIn.
You can then use cin to get user input and store it to userIn.
All you have to do then is compare userIn to greatest. If userIn is greater than greatest, update greatest to equal userIn. If userIn is less than smallest, update smallest to equal userIn. Do this five times and you are good to go.
The first time you do that though, you need to set greatest and smallest to userIn as the first input will be both the largest and smallest input so far...

Jul 13, 2012 at 6:01am

can you give me an example? For me its hard to understand without the examples. Thank you!

Jul 13, 2012 at 6:12am

I don't really want to do your homework for you... But I'll get you started in the right direction.

...
int userIn, max, min; //define vars
cin>>userIn; //Get 1st number
max=userIn; //Set Maximum to first number
min=userIn; //Set Minimum to first number
cin>>userIn; //Get next number
if (userIn>max) //Check if user entered amount bigger than current maximum
  max=userIn; //If user entered amount bigger than current maximum, update current maximum
if (userIn<min) //Check if user entered amount smaller than current minimum
  min=userIn; //If user entered amount smaller than current minimum, update current minimum
...

Jul 13, 2012 at 6:18am

For "userIn", is that like integer1,integer2,and integer3? Do they hold integers?

Jul 13, 2012 at 6:21am

Yes, userIn is a integer just like the rest. It's just named different.

Jul 13, 2012 at 6:46am

You still there? I need help... I did it but I only do it with 3 integers. What did I do wrong!

#include <iostream>
using namespace std;
int main()
{
int int1,int2,int3,sum,average,product,small,large;
cout << "Enter 3 integers\n";
cin >> int1,int2,int3;
sum = int1 + int2 + int3;
cout << "Sum: " << sum << endl;
average = (int1 + int2 + int3) / 3;
cout << "Average: " << average << endl;
product = int1 * int2 * int3;
cout << "Product: " << product << endl;
if (int1>large) large = int1;
if (int1<small) small = int1;
if (int2>large) large = int2;
if (int2<small) small = int2;
if (int3>large) large = int3;
if (int3<small) small = int3;
return 0;
}

Last edited on Jul 13, 2012 at 7:00am

Jul 13, 2012 at 4:33pm

#include <iostream>
using namespace std;
int main()
{
int userIn, sum, product, small, large;
cout << "Enter 5 integers\n";
cin >> userIn;
sum=userIn;
product=userIn;
small=userIn;
large=userIn;

cin >> userIn;
sum=sum+userIn;
product=product*userIn;
if (userIn<small)
  small=userIn;
if (userIn>large)
  large=userIn;

cin >> userIn;
sum=sum+userIn;
product=product*userIn;
if (userIn<small)
  small=userIn;
if (userIn>large)
  large=userIn;

cin >> userIn;
sum=sum+userIn;
product=product*userIn;
if (userIn<small)
  small=userIn;
if (userIn>large)
  large=userIn;

cin >> userIn;
sum=sum+userIn;
product=product*userIn;
if (userIn<small)
  small=userIn;
if (userIn>large)
  large=userIn;

cout << "Sum: " << sum << endl;
cout << "Average: " << sum/5 << endl;
cout << "Product: " << product << endl;
cout << "Smallest: " << small << endl;
cout << "Largest: " << large << endl;
return 0;
}

Or if you want to simplify it into a for loop:

#include <iostream>
using namespace std;
int main()
{
int userIn, sum, product, small, large;
cout << "Enter 5 integers\n";
cin >> userIn;
sum=userIn;
product=userIn;
small=userIn;
large=userIn;

for (int i=1; i<5; i++) {
  cin >> userIn;
  sum=sum+userIn;
  product=product*userIn;
  if (userIn<small)
    small=userIn;
  if (userIn>large)
    large=userIn;
}

cout << "Sum: " << sum << endl;
cout << "Average: " << sum/5 << endl;
cout << "Product: " << product << endl;
cout << "Smallest: " << small << endl;
cout << "Largest: " << large << endl;
return 0;
}

Jul 13, 2012 at 8:48pm

I think what's best for me is to learn what are loops/array...!

Last edited on Jul 13, 2012 at 8:48pm

Jul 14, 2012 at 5:44am