#include #include #define rep(i,n) for(int i=0;i vi; typedef vector vl; typedef vector> vvi; typedef vector> vvl; typedef long double ld; typedef pair P; ostream& operator<<(ostream& os, const modint& a) {os << a.val(); return os;} template ostream& operator<<(ostream& os, const static_modint& a) {os << a.val(); return os;} template ostream& operator<<(ostream& os, const dynamic_modint& a) {os << a.val(); return os;} template istream& operator>>(istream& is, vector& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;} template ostream& operator<<(ostream& os, const pair& p){os << p.first << ' ' << p.second; return os;} template ostream& operator<<(ostream& os, const vector& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;} template ostream& operator<<(ostream& os, const vector>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;} template void chmin(T& a, T b){a = min(a, b);} template void chmax(T& a, T b){a = max(a, b);} const int dig = 300; using BS = bitset; template struct Noshi{ bool initialized; vector a; int n, M, deg; vi memo; Noshi(vector _a) : initialized(false), a(_a), n(_a.size()){ if(is_same::value) {M = 30;} else if(is_same::value) {M = 62;} else if(is_same::value) {M = dig - 1;} memo.resize(M + 1, -1); } void init(){ initialized = true; deg = 0; for(int j = M; j >= 0; j--){ int idx = -1; for(int i = deg; i < n; i++){ if(((a[i] >> j) & (T)1) == (T)1){ idx = i; break; } } if(idx >= 0){ swap(a[idx], a[deg]); rep(i, n){ if(i != deg){ if(((a[i] >> j) & (T)1) == (T)1){ a[i] ^= a[deg]; } } } memo[j] = deg; deg++; } } } T get_max(){ if(!initialized) init(); T res = 0; for(int j = M; j >= 0; j--){ if(memo[j] == -1) continue; if(((res >> j) & (T)1) == (T)0){ res ^= a[memo[j]]; } } return res; } int get_degree(){ if(!initialized) init(); return deg; } bool is_possible(T x){ if(!initialized) init(); T real = 0; for(int j = M; j >= 0; j--){ if(((real >> j) & (T)1) != ((x >> j) &(T)1)){ if(memo[j] == -1) return false; real ^= a[memo[j]]; } } return true; } }; int main(){ int n; cin >> n; vector a(n); cin >> a; { int tmp = 0; rep(i, n) tmp ^= a[i]; if(tmp != 0){ cout << "No\n"; return 0; } } int x = a[n - 1]; a.pop_back(); Noshi noshi(a); if(noshi.get_degree() < n - 1) cout << "Yes\n"; else cout << "No\n"; return 0; }