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func countValidWords(sentence string) int {
words := strings.Fields(sentence)
cunt := 0
CuntWord:
for _, word := range words {
sum := 0
n := len(word)
for i := 0; i < n; i++ {
if unicode.IsLetter(rune(word[i])) {
continue
} else if unicode.IsDigit(rune(word[i])) {
continue CuntWord
} else if word[i] == '-' {
if sum == 1 {
continue CuntWord
}
sum++
if i == 0 || i == n-1 || !unicode.IsLetter(rune(word[i-1])) || !unicode.IsLetter(rune(word[i+1])) {
continue CuntWord
break
}
} else if i != n-1 {
continue CuntWord
break
}
}
cunt++
}
return cunt
}
第 016 期(2022.1.27) | Learning
题目描述 # 句子仅由小写字母(‘a’ 到 ‘z’)、数字(‘0’ 到 ‘9’)、连字符('-')、标点符号('!'、'.' 和 ‘,')以及空格(’ ‘)组成。每个句子可以根据空格分解成 一个或者多个 token ,这些 token 之间由一个或者多个空格 ' ' 分隔。 如果一个 token 同时满足下述条件,则认为
https://talkgo.dev/docs/algorithms/algs/016/
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