[LeetCode] 1720. Decode XORed Array (Java)

https://leetcode.com/problems/decode-xored-array/

Solution

import java.util.Arrays;

class Solution {
    static int[] decode(int[] encoded, int first) {
        int[] answer = new int[encoded.length + 1];
        answer[0] = first;
        for (int i = 0; i < encoded.length; i++) {
            answer[i + 1] = answer[i] ^ encoded[i]; // ^: XOR,
        }
        return answer;
    }

    public static void main(String[] args) {
        System.out.println(Arrays.toString(decode(new int[]{1, 2, 3}, 1)));
        System.out.print(Arrays.toString(decode(new int[]{6, 2, 7, 3}, 4)));
    }
}