Array Sum in C

This program calculates the sum of all elements in an array.

#include <stdio.h>

int main() {

    int n;

    printf("Enter the number of elements: ");

    scanf("%d", &n);

    int arr[n], sum = 0;

    printf("Enter %d elements: ", n);

    for (int i = 0; i < n; ++i) {

        scanf("%d", &arr[i]);

        sum += arr[i];

    }

    printf("Sum of elements: %d\n", sum);

    return 0;

}