Arrays

[soccersucks3]

Hi i'm relatively new to C++ and I've been asked to randomly fill an array with 100 positive integers with values between 0 and 99. Could someone please help me?

this is what i have so far and i know it's terribly wrong.

#include <iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
const int aSize=10;

int main()
{
a[i]=rand();
srand(time(0));
int a[aSize];
for (int i=0;i<aSize;i++)
cout<<endl;

cout<<a[i];
return 0;
}

[LB]

#include <iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
const int aSize=10; //I thought you wanted 100 integers not 10?

int main()
{
    a[i]=rand(); //where does 'a' come from?
    srand(time(0));
    int a[aSize];
    for (int i=0;i<aSize;i++)
    cout<<endl; //why are you looping this statement?

    cout<<a[i]; //where does 'i' come from?
    return 0;
}

How I would do it:
main function
    seed the random generator
    define a constant integral type for size of array with value 100
    make array with size declared above
    loop through array
        for current array index set random value modulus 100
    ...

[soccersucks3]

i guess i didn't understand what you were suggesting i should do so this is what i have so far:

#include <iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
const int aSize=100;	
int array[aSize];
int main()
{

	for (int i=0;i<aSize;i++)
	{ 
		array[i]=(rand()% 99+0);
		if ((i+1)%20==0)
			cout<<array[i]<<" "<<endl;
		else
			cout<<array[i]<<" ";

	}
	return 0;
}

is this ok?

[LB]

- "aSize" and "array" should be inside of main.
- you need to srand at the beginning of main.
- %99 doesn't quite fulfill the whole range.
After that I think it *should* be fine. Does it actually work?

[Fumbles]

If I were you, I would ask myself these questions:

1). Why do you need ctime?
2). Is there a way of presenting array[aSize] without writing aSize?
3). What range of variables does %99 (mod 99) give? Does adding 0 to this do anything?
4).What do the logical operators do? Are they needed here?

I hope this helps.

[soccersucks3]

yes thank you for all your help... i've now managed to complete it.

[Fumbles]

This is how I did it:

/*

Fills an array with 100 random positive integers with values between 0 and 99.

*/

#include <iostream>
#include <cstdlib>
using namespace std;

int main(){

	int atr[100];

	for(int i=0; i < 100; i++){	atr[i]=rand() % 100;	
					cout << atr[i] << ' ';	}

	cout << '\n';

return 0;

}

I hope it looks similar to yours.