I need a help please

[abc1420]

Hi friends
I need a help in c++
I have to write a program that will find the average in the array x of n
size of array n<=100
Thanks

[webJose]

Then write it. We won't do the homework for you. If you bump into a specific problem regarding the C/C++ language, or maybe that your program doesn't fully work on specification, then yes, we might help. We just won't hand this out for you.

[abc1420]

Thanks but i don't want all the program i want one thing only:
How can i write th average for n<=100
i know that ,, for example the average for 3 numbers is:
numb1+numb2+numb3/3

[webJose]

Great, now you are closer. I suppose you know about loops? Do a FOR loop from start to finish, and keep adding numbers into a variable. Once you are done with the loop, divide that number using the total number of elements in the array, which could be 100 or less. I suppose you are using C-styled arrays, so I guess you have the array variable and another variable that knows the total number of valid elements inside the array.

If you have trouble with this explanation, please state where.

[abc1420]

Hmm like this:
#include <iostream>
using namespace std;
int main()
{ int m;
double average,total=0;
int n;
int sum;
int x [100];
double average = sum/100;
for (n =0;n<=100;n++)
cout<<"The average is"<<average<<endl;
return 0;
}
?

[Breadman]

Nop.

#include <iostream>
using namespace std;
int main()
{ int m;
double average,total=0;
int n;
int sum;
int x [100];
double average = sum/100; // sum hasnt been defined, remove this line i think
for (n =0;n<=100;n++) // in the loop you should ask for the numbers and add them to the sum
// here you should calculate the average
cout<<"The average is"<<average<<endl;
return 0;
}

[abc1420]

Thanks but Can You explain more about:
in the loop you should ask for the numbers and add them to the sum?

[webJose]

Breadman's sample has several errors, most notably the attempt to use sum when sum hasn't been calculated. But he gave you a decent starting point. You must correct the vices in that code, though. The most important one is to always initialize your variables. Line 7 definitely requires changing to int sum = 0; or you'll end up with ridiculous numbers.

[abc1420]

Thank You very much..Yes.. i forgat .. sum =0
now I have the program most of it right?Because if somethings are wrong i will try to correct them
#include <iostream>
using namespace std;
int main()
{ int m;
double average,total=0;
int n;
int sum=0;
int x [100];
average =sum/100;
for (n =0;n<=100;n++)
cout<<"The average is"<<average<<endl;
cin>>m;
return 0;
}

[abc1420]

Ok.. I read the book an i wrote the new code by a new way:
#include <iostream>
using namespace std;
int main()
{
int m;
int sum =0;
int average =0;
int array [100] = {1:100}; HERE PLEASE HOW CAN I WRITE NUMBERS FROM 1 TO 100? BECAUSE IF I WRITE IT LIKE THIS { 1,2,3,4,5,6,ETS}IT WILL TAKE MANY NUMBERS...
for ( int n=0 ; n<100; i++)
sum +array [n];
average = sum/100;
cout<<"average:"<<average;
cin>>m;
return 0;
}

[hanst99]

Uh... just intialize the array with a for loop.

[abc1420]

like this?
because it gave me wrong
#include <iostream>
using namespace std;
int main()
{
int m;
int sum =0;
int average =0;
int array [100] = for {1:100};
for ( int n=0 ; n<100; i++)
sum +array [n];
average = sum/100;
cout<<"average:"<<average;
cin>>m;
return 0;
}