1720. Decode XORed Array

class Solution {
public:
    vector<int> decode(vector<int>& encoded, int first) {
        vector<int>ans;
        ans.push_back(first);
        long t=first;
        for(int i=0; i<encoded.size(); i++){
            t=t^encoded[i];
            ans.push_back(t);
        }
        return ans;
    }
};