sillyfellow · October 3, 2018 17:00
diff --git a/duplicate_finder.go b/duplicate_finder.go
 func intersection(s1, s2 string) string {
 	m := map[rune]bool{}

 	for _, c := range s1 {
 		m[c] = true
 	}

 	var ret string
 	for _, c := range s2 {
 		if _, y := m[c]; y {
 			ret += string(c)
 		}
 	}

 	return ret
 }
	func intersection(s1, s2 string) string {
	m := map[rune]bool{}

	for _, c := range s1 {
	m[c] = true
	}

	var ret string
	for _, c := range s2 {
	if _, y := m[c]; y {
	ret += string(c)
	}
	}

	return ret
	}