Print Sum of Even Numbers

Code

#include <stdio.h>

int sum_even_numbers(int *ptr, int n) {

  int s = 0;
  for (int i = 0; i < n; i += 1) {
    int v = *(ptr + i);
    if (v % 2 == 0) {
      s += v;
    }
  }
  return s;
}

int main() {
  int n;
  scanf("%d", &n);

  int arr[100];
  for (int i = 0; i < n; i++) {
    scanf("%d", &arr[i]);
  }

  int result = sum_even_numbers(arr, n);

  printf("Sum = %d", result);

  return 0;
}

Solving Approach