#include #if __has_include() #include using namespace atcoder; #endif using namespace std; /* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") */ #define ll long long #define rep(i, n) for (ll i = 0; i < n; ++i) #define rep_up(i, a, n) for (ll i = a; i < n; ++i) #define rep_down(i, a, n) for (ll i = a; i >= n; --i) #define P pair #define pb push_back #define bit_count(x) __builtin_popcountll(x) #define gcd(a,b) __gcd(a,b) #define lcm(a,b) a / gcd(a,b) * b #define endl "\n" #define all(v) v.begin(), v.end() #define fi first #define se second #define vvvvll vector< vector > > > #define vvvll vector< vector< vector > > #define vvll vector< vector > #define vll vector #define pqll priority_queue #define pqllg priority_queue, greater> template inline void vin(vector& v) { rep(i, v.size()) cin >> v.at(i); } template using V = vector; constexpr ll INF = (1ll << 60); //constexpr ll mod = 1000000007; constexpr ll mod = 998244353; constexpr double pi = 3.14159265358979323846; template inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } template void pt(T val) { cout << val << "\n"; } template void pt_vll(vector &v) { ll vs = v.size(); rep(i, vs) { cout << v[i]; if (i == vs - 1) cout << "\n"; else cout << " "; } } //wa //愚直な比較関数 void solve(){ ll n, m, k, cnt = 0, sum = 0, ans = 0; ll x; cin>>n>>x; vll a(n); vin(a); vector> b(n); rep(i,n){ b[i]={a[i],a[i]^x}; } //sort(all(b)); sort(all(b),[](auto const& lhs, auto const& rhs) { return (lhs.fi=b[i+1].fi) flag=1; if(b[i].fi>=b[i+1].se) flag=1; } if(flag==0) pt("Yes"); else pt("No"); } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); //cout << fixed << setprecision(16); //ll T; //cin>>T; //rep(ca,T) solve(); }