Submission #19517734

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int n;
vector<int> a, b;

bool solve();

int main() {
  cin >> n;
  b.resize(n);
  for (auto &p : b) cin >> p;
  if (solve())
    for (auto p : a) cout << p << endl;
  else
    cout << -1 << endl;
  return 0;
}

bool solve() {
  a.assign(n, 0);
  for (int i = 1; i < n; ++i) a[i] = a[i - 1] ^ b[i - 1];
  return b.back() == a.back();
}

Submission Info

Judge Result