// Package summultiples is for reporting multiples.
package summultiples
// SumMultiples sums up every multiple of each element in div once.
func SumMultiples(limit int, div ...int) int {
	var sum int
	for i := 1; i < limit; i++ {
		for _, d := range div {
			if d == 0 {
				continue
			}
			if i%d == 0 {
				sum += i
				// do not count more than once
				break
			}
		}
	}
	return sum
}