self-dividing-numbers.go

package main

import "strconv"

func selfDividingNumbers(left int, right int) []int {

	IsSelfDiv := func(n int) bool {
		s := strconv.Itoa(n)
		for _, c := range s {
			if c == '0' {
				return false
			}
			if n%int(c-'0') != 0 {
				return false
			}
		}
		return true
	}

	res := []int{}
	for i := left; i <= right; i++ {
		if IsSelfDiv(i) {
			res = append(res, i)
		}
	}
	return res
}