leetcode-go/leetcode/easy/434.number-of-segments-in-a-string.go

func countSegments(s string) (cnt int) {
	isSpace := true
	for _, r := range s {
		if r != ' ' && isSpace {
			cnt++
			isSpace = false
		}
		if r == ' ' {
			isSpace = true
		}
	}
	return
}