In this program, You will learn how to find the sum of array elements using functions and pointers in C++.

```
Sum of array elements using function and pointers
sumOfArray(arr, size, &sum);
```

## Example: How to find the sum of array elements using functions and pointers in C++.

```
#include<iostream>
using namespace std;
void sumOfArray(int arr[], int n, int *s) {
for (int i = 0; i < n; i++) {
*s = *s + arr[i];
}
}
int main() {
int arr[10], i, n, s = 0;
cout << "Enter size of an array:";
cin>>n;
cout << "Enter array elements:";
for (i = 0; i < n; i++) {
cin >> arr[i];
}
sumOfArray(arr, n, &s);
cout << "Sum of array elements is: " << s;
return 0;
}
```

#### Output:

```
Enter size of an array:5
Enter array elements:10 20 30 40 50
Sum of array elements is: 150
```