我用java刷 leetcode 1720. 解码异或后的数组

Posted 2021-06-02 深林无鹿

这里有leetcode题集分类整理！！！

AC：

class Solution {
    public int[] decode(int[] encoded, int first) {
        int len = encoded.length + 1;
        int[] res = new int[len];
        res[0] = first;
        for (int i = 1 ; i < len ; i ++) {
            res[i] = res[i - 1] ^ encoded[i - 1];
        }
        return res;
    }
}