#include <bits/stdc++.h>
using namespace std;

class Solution {
public:
    // Function to calculate sum of array elements
    int arraySum(vector<int>& arr) {
        // Initialize sum variable
        int sum = 0;

        // Loop through all elements
        for (int i = 0; i < arr.size(); i++) {
            // Add current element to sum
            sum += arr[i];
        }
        // Return the total sum
        return sum;
    }
};

// Driver code
int main() {
    Solution sol;
    vector<int> arr = {1, 2, 3, 4, 5};
    cout << sol.arraySum(arr) << "\n";
    return 0;
}
import java.util.*;

class Solution {
    // Function to calculate sum of array elements
    public int arraySum(int[] arr) {
        // Initialize sum variable
        int sum = 0;

        // Loop through all elements
        for (int i = 0; i < arr.length; i++) {
            // Add current element to sum
            sum += arr[i];
        }
        // Return the total sum
        return sum;
    }
}

public class Main {
    public static void main(String[] args) {
        Solution sol = new Solution();
        int[] arr = {1, 2, 3, 4, 5};
        System.out.println(sol.arraySum(arr));
    }
}
class Solution:
    # Function to calculate sum of array elements
    def arraySum(self, arr):
        # Initialize sum variable
        total = 0

        # Loop through all elements
        for num in arr:
            # Add current element to total
            total += num

        # Return the total sum
        return total

# Driver code
if __name__ == "__main__":
    sol = Solution()
    arr = [1, 2, 3, 4, 5]
    print(sol.arraySum(arr))