C++ Program to find the sum of array elements using functions and pointers

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

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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