1def reverseWords(s):
2    words = s.split()
3    return ' '.join(word[::-1] for word in words)
4
5s = "Let's take LeetCode contest"
6print(reverseWords(s))

1using System;
2
public class Solution {
    public static void ReverseWords(string s) {
        char[] arr = s.ToCharArray();
        int start = 0;

        for (int end = 0; end <= arr.Length; end++) {
            if (end == arr.Length || arr[end] == ' ') {
                Reverse(arr, start, end - 1);
                start = end + 1;
            }
        }
        Console.WriteLine(new String(arr));
    }

    private static void Reverse(char[] arr, int start, int end) {
        while (start < end) {
            char temp = arr[start];
            arr[start] = arr[end];
            arr[end] = temp;
            start++;
            end--;
        }
    }

    public static void Main() {
        string s = "Let's take LeetCode contest";
        ReverseWords(s);
    }
}