[With Golang Brush Leetcode 6] 557. Reverse Words in a String III

This is a creation in Article, where the information may have evolved or changed.

Topic

Given a string, need to reverse the order of characters in each word within a sentence while still preserving WhiteSpa CE and initial word order.

Example 1:

Input: "Let's take Leetcode contest"
Output: "s ' TeL ekat edocteel Tsetnoc"

Note: In the string, each of the word is separated by a single space and there won't is a extra space in the string.

Main topic

Returns a new string, given a string, by reversing each word verbatim.

Note: There are only 1 spaces separated between words in a string.

Ideas

Code

Reversewords.go

package _557_Reverse_Words3import "strings"func ReverseWord(s string) string {    runes := []rune(s)    for from, to := 0, len(runes)-1; from < to; from, to = from+1, to-1 {        runes[from], runes[to] = runes[to], runes[from]    }    return string(runes)}func ReverseWords(s string) string {    wordArr := strings.Split(s, " ")    var ret string    length := len(wordArr)    for i := 0; i < length; i++ {        reverseWord := ReverseWord(wordArr[i])        if 0 == i {            ret = ret + reverseWord        } else {            ret = ret + " " + reverseWord        }    }    return ret}

Test

Reversewords_test.go

The 
  package _557_reverse_words3import "Testing" func testreversewords (t *testing.        T) {ret: = Reversewords ("Let's Take Leetcode contest") Want: = "s ' TeL ekat edocteel tsetnoc" if ret = = want { T.LOGF ("Pass")} else {T.errorf ("fail, want%+v, get%+v", Want, Ret)}}