I have problem using while and for loop

Question

1.00/5 (1 vote)

See more:

the question is :
Write a program that compute the sum and average of square of first five integers.
Try to write it also for user defined number instead of 5.

Sum = 1*1 + 2*2 + 3*3 + 4*4 + 5*5 ;

Write the programs one with for loop and one with while loop.

What I have tried:

C++

#include <iostream>

using namespace std;

int main()
{
int number , counter ;
float average;
float sum =0;
cout<< "Enter five numbers to find the sum and the average of square of first five integer"<<endl;
cin >>number;
for (counter=0;counter<5;counter++){
    sum=sum+(number*number);
    cin>>number;
    (number+number);
}
cout<<"The sum is :"<<endl <<sum<<endl;
average =sum/counter;
cout<<"The average is :"<<endl<<average;
    return 0;
}

Posted 4-Dec-16 7:26am

Member 12886219

Updated 4-Dec-16 12:03pm

KarstenK

v2

Add a Solution

2 solutions

Solution 2

Your code is weird looking, you should run it under debugger and inspect the variables as you step line by line.

You should learn to use the debugger as soon as possible. Rather than guessing what your code is doing, It is time to see your code executing and ensuring that it does what you expect.

The debugger allow you to follow the execution line by line, inspect variables and you will see that there is a point where it stop doing what you expect.
Debugger - Wikipedia, the free encyclopedia[^]
Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]

The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.

Posted 4-Dec-16 12:03pm

Patrice T

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

KarstenK · Accepted Answer · 2016-12-04T07:38:00

The while loop is also easy:

C++

int counter = 0;
while( counter < 5 ) {
// your code
counter ++;
}

For a variable length of input you only need a another var.

C++

int theCount = 0;
cout<< "Enter count of numbers for computation"<<endl;
cin >> theCount;
int counter = 0;
while( counter < theCount ) { //use for exit loop
// your code
counter ++;