Merge pull request #2180 from Nihilism0/patch-1

优化 0151.翻转字符串里的单词Go示例
This commit is contained in:
程序员Carl
2023-07-28 10:05:56 +08:00
committed by GitHub

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@ -547,26 +547,28 @@ func reverseWords(s string) string {
b = b[:slowIndex]
}
//2.反转整个字符串
reverse(&b, 0, len(b)-1)
reverse(b)
//3.反转单个单词 i单词开始位置j单词结束位置
i := 0
for i < len(b) {
j := i
for ; j < len(b) && b[j] != ' '; j++ {
}
reverse(&b, i, j-1)
reverse(b[i:j])
i = j
i++
}
return string(b)
}
func reverse(b *[]byte, left, right int) {
for left < right {
(*b)[left], (*b)[right] = (*b)[right], (*b)[left]
left++
right--
}
func reverse(b []byte) {
left := 0
right := len(b) - 1
for left < right {
b[left], b[right] = b[right], b[left]
left++
right--
}
}
```