0557. Reverse Words in a String iii #

题目 #

给定字符串 s，反转字符串中每个单词的字符顺序，同时保留空格和单词的初始顺序。

思路 #

双指针 #

代码 #

双指针 #

class Solution {
    public String reverseWords(String s) {
        String[] words = s.split(" ");
        for (int i = 0; i < words.length; i++) {
            char[] charArray = words[i].toCharArray();
            int left = 0, right = charArray.length - 1;
            while (left < right) {
                char temp = charArray[left];
                charArray[left] = charArray[right];
                charArray[right] = temp;
                left++; right--;
            }
            words[i] = String.valueOf(charArray);
        }
        String ans = words[0];
        for (int i = 1; i < words.length; i++) ans += " " + words[i];
        return ans;
    }
}