Program to calculate sum of all even and all odd elements in an array

#include<stdio.h>  // sum of even and odd elements in array
int main(int argc, char const *argv[])
{
    int size, a[100], i, sumofeven = 0, sumofodd = 0;
    printf("enter size of array: ");
    scanf("%d",&size);
    printf("enter %d elements in array\n");
    for(i=0;i<size;i++)
    {
        scanf("%d",&a[i]);
    }
    for(i=0;i<size;i++)
    {
        if(a[i] % 2 == 0)
        {
            sumofeven = sumofeven + a[i];
        }
        else
        {
            sumofodd = sumofodd + a[i];
        }
    }
    printf("sum of even numbers = %d\n",sumofeven);
    printf("sum of odd numbers = %d", sumofodd);
    return 0;
}