Pass some elements of array to other

Question

I have an array containing multiple numbers, now I have to extract only prime numbers and save them in other array...can anyone tell how to pass prime numbers in other array?
#include <iostream>
using namespace std;
bool isprime(int vs)
{
if (vs < 2)
{
return false;
}
for (int d = 2; ; d++)
{
if (vs % d == 0)
{
return false;
}
else
{
return true;
}
}
}
int main()
{
const int capacity = 10;

int arr[capacity];
int prime[capacity];
cout << "enter array:\n";

for (int i = 0; i < capacity; i++)
{
int counter = 0;
cin >> arr[i];
if (isprime(arr[i]))
{
prime[counter] = arr[i];
cout << arr[i] << " is prime" << endl;
counter++;
}

}
for (int counter = 0; counter < capacity; counter++)
{
cout << prime[counter] << endl;
}

}

Answer 1

Intialize a new array with size same as array of numbers.
Take a variable say counter and assign it a value of 0.

Loop over the array to find prime numbers and assign new_array the number like,

new_array[counter]=number;
//increment the counter by 1
counter++;

Answer 2

Martin Taylor thanks...you are pretty awesome in coding, I am in 2nd semester of CS, but still struggling with how to make logics, but hope it will come around with practice

Answer 3

Martin Taylor your loop in prime function is very complex

Answer 4

Look at code...not working your idea