To Find the Average of submitted numbers

[Uzumaki]

Hi Guys I have a homework assignment and I cannot find the average number of random numbers for example: User inputs
1
2
-4
-3
8
and it goes until user inputs zero, When the zero is input, The program shows minimum and maximum values and the average of input numbers. I have no problems with minimum and maximum values but I couldn't find the average of these given numbers, Can you please help me on that issue. I will really appreciate it, Thank you
My Code is Like this:

#include<iostream>
using namespace std;
int main()
{
int largest;
int smallest;
int num;
bool isValid=true;
cout<<"Enter a number (0 to end)."<<endl;
while(num!=0){
cin>>num;
if(num>largest&&num!=0)
largest=num;
else if(num<smallest&&num!=0)
smallest=num;
if(num==0){
cout<<"Largest number entered was: "<<largest<<endl;
cout<<"Smallest number entered was: "<<smallest<<endl;
isValid=false;
}
}
system("pause");
return 0;
}

Now I have to put the average. But I don't have idea on that can you help me?

[Return 0]

Why could you not find the average of these numbers? Keep a running count of the number of integers entered and a running total, simply divide them after the input loop ends.

[Computergeek01]

What do you have so far? Post it here with code tags if you would be so kind, it's the button to the lower right that looks like this "<>".

[Uzumaki]

I submitted my code. Now I have to put the code inside this program but I don't have exact idea how to do this.

[Computergeek01]

You don't know how to use your IDE?

[Uzumaki]

I am newbie and what is the relationship between my question and IDE? I don't understand the gravity of your Question Computergeek01 Here is my COde:

#include<iostream>
using namespace std;
int main()
{
int largest;
int smallest;
int num;
bool isValid=true;
cout<<"Enter a number (0 to end)."<<endl;
while(num!=0){
cin>>num;
if(num>largest&&num!=0)
largest=num;
else if(num<smallest&&num!=0)
smallest=num;
average=(largest+smallest)/num;
if(num==0){
cout<<"Largest number entered was: "<<largest<<endl;
cout<<"Smallest number entered was: "<<smallest<<endl;

isValid=false;
}

}
system("pause");
return 0;
}

[Computergeek01]

Sorry, IDE = "Integrated Development Environment", it could be Code::Blocks, MS Visual C++, Eclipse or a number of others. It is the program that you would use to help you write programs, are you using any of the ones I listed? Or are you using the compiler straight up?

[Uzumaki]

I use Bloodshed Dev C++ Program to run the Code and sometimes Visual Studio 2010. But it is very slow so i prefer to use Dev C++. It compiles fast. Can you help to find solution for the problem that I have mentioned before, it is very important for me, Please, Thanks in advance! :D

[Computergeek01]

Change line 16 to int average = (largest + smallest) / num; the spaces aren't needed. It looks like you forgot to declare "average" before you used it.

EDIT: It's been my experiance that if Visual Studio is compiling slow it's because of the "debug" version. Set it not to compile a debug version of your application and it should speed up considerably. Also please move away from Dev-C++: http://www.cplusplus.com/forum/articles/36896/

[Uzumaki]

I did as you said but program didn't work it Shows error. The Error Message Box Appeared saying Just-In-Time Debugger. :(

[Computergeek01]

Can't you turn that off? Sorry I don't have that IDE installed on this PC anymore. I'll google it.

[Computergeek01]

Give this a shot: http://msdn.microsoft.com/en-us/library/5hs4b7a6.aspx#bkmk_enabling

[Uzumaki]

Guys I am really sorry but it didn't work. Now I am using Visual C++ 2010 and it shows error and the error is that the

num

is not initialized can you give me another solution my code is:

#include<iostream>
using namespace std;
int main()
{
int largest;
int smallest;
int num;

cout<<"Enter a number (0 to end)."<<endl;
while(num!=0){
cin>>num;
if(num>largest&&num!=0)
largest=num;
else if(num<smallest&&num!=0)
smallest=num;
int average=(smallest+largest)/num;
if(num==0){
cout<<"Largest number entered was: "<<largest<<endl;
cout<<"Smallest number entered was: "<<smallest<<endl;
cout<<"The average is: "<<average<<endl;
}
}
return 0;
}

I will really appreciate this if you help me with this code. :)
After I wrote the code int average=(smallest+largest)/num; it started to show error. But I need to find average. It is one of the important issues.

[techie07]

you have two options:

either in loop, count the number of input numbers, and inside loop increment that counter, also take all number's sum. And, after loop, just do sum/counter

2nd solution would be:
double avg = 0;
while (num != 0)
{
if (n == 0)
break;

//input number into n variable
avg = (avg + n)/2;

}


Try this.
Gorav
http://www.kgsepg.com

[Uzumaki]

The second one is not working. I didn't test the first one. As I understood in the first it should be:

int avg;
int sum;
for(int counter=0;counter<=sum; counter++)
avg=sum/counter;

Like this?
Can you help me to implement this code into a code, the exact place it should be staying.
Thanx in Advance.

[matsom]

Another way to do this:
1. get input from user: check the input for error (e.g when user enters a letter or characters or floating point numbers) ref: http://www.cplusplus.com/forum/beginner/4566/#msg20182
2. store input in dynamic array i.e vector: ref: http://www.cplusplus.com/reference/stl/vector/
3. sort the vector/array using sort algorithm: http://www.cplusplus.com/reference/algorithm/sort/
- you'll get the smallest number in the first and largest in last element
4. add up all the vector elements and divide it by its size to get your average -use for loop
ref: http://www.cplusplus.com/doc/tutorial/control/

[packetpirate]

Well for one, you're comparing num to largest when largest hasn't even been initialized.

[Uzumaki]

Thank you guys, I have solved this problem. Thanks for your ideas and hints :D