Variadic Function

#include <stdio.h>
#include <stdarg.h>
int add(int n, ...)
{
    int sum = 0;
    va_list vlist;
    va_start(vlist, n);
    for(int i = 0; i < n; i++)
    {
        sum += va_arg(vlist, int);
    }
    va_end(vlist);
    return sum;
}

int main()
{
    int sum;
    sum = add(4, 3, 9, 3, 4);
    printf("The sum of those numbers is %d\n", sum);
    return 0;
}