#pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx,avx2") #include #define INF 1000000001LL #define LNF 1000000000000000001LL #define MOD 1000000007LL #define MAX 200000 #define long long long #define all(x) x.begin(),x.end() using namespace std; bool dp[5000][1<<13]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; vector arr(n); int al = 0; for(int i = 0; i> arr[i]; al^=arr[i]; } if(al) { cout << "No\n"; return 0; } if(n > 15) { cout << "Yes\n"; return 0; } dp[0][arr[0]] = true; for(int i = 1; i