#include using namespace std; using ll=long long; const ll ILL=2167167167167167167; const int INF=2100000000; #define rep(i,a,b) for (int i=(int)(a);i<(int)(b);i++) #define all(p) p.begin(),p.end() template using _pq = priority_queue, greater>; template int LB(vector &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();} template int UB(vector &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();} template bool chmin(T &a,T b){if(b bool chmax(T &a,T b){if(a void So(vector &v) {sort(v.begin(),v.end());} template void Sore(vector &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});} bool yneos(bool a,bool upp=false){if(a){cout<<(upp?"YES\n":"Yes\n");}else{cout<<(upp?"NO\n":"No\n");}return a;} template void vec_out(vector &p,int ty=0){ if(ty==2){cout<<'{';for(int i=0;i<(int)p.size();i++){if(i){cout<<",";}cout<<'"'< T vec_min(vector &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmin(ans,x);return ans;} template T vec_max(vector &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmax(ans,x);return ans;} template T vec_sum(vector &a){T ans=T(0);for(auto &x:a) ans+=x;return ans;} int pop_count(long long a){int res=0;while(a){res+=(a&1),a>>=1;}return res;} template T square(T a){return a * a;} namespace po167{ struct UF { using _F = int; int _n; std::vector<_F> wei; std::vector q; std::vector r; int component; UF(int n):_n(n), wei(n), r(n), component(n), par(n){ for (int i = 0; i < n; i++){ wei[i] =1, par[i] = i, r[i] = i; } } void intialize(){ for (auto x : q){ wei[root(x)] = 1; par[x] = x; wei[x] = 1; } component = (int)par.size(); q = {}; } //根っこを返す int root(int a){ assert(0 <= a && a < _n); if (a == par[a]) return a; return par[a] = root(par[a]); } //trueなら1,falseなら0 int same(int a, int b){ assert(0 <= a && a < _n); assert(0 <= b && b < _n); if(root(a) == root(b)) return 1; else return 0; } _F size(int a){ return wei[root(a)]; } //a,bが違う根っこの元なら結合する,結合したらtrueを返す bool unite(int a,int b){ a = root(a), b = root(b); if (a == b) return false; if (wei[a] < wei[b]) std::swap(a, b); par[b] = a; q.push_back(b); wei[a] += wei[b]; r[a] = max(r[a], r[b]); component--; return true; } private: std::vector par; }; } using po167::UF; void solve(); // POP'N ROLL MUSIC / TOMOO int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t = 1; // cin >> t; rep(i, 0, t) solve(); } void solve(){ int N, H, W; cin >> N >> H >> W; vector>> G(N + 1); vector ufs(H + 2, UF(W + 2)); rep(i, 0, N){ int x1, x2, y1, y2; cin >> x1 >> x2 >> y1 >> y2; x2++, y2++; rep(x, x1, x2){ int y = y1; while (true){ y = ufs[x].r[ufs[x].root(y)]; if (y >= y2) break; G[i].push_back({x, y}); ufs[x].unite(y, y + 1); } } } rep(i, 0, H + 2) rep(j, 0, W + 2) if (ufs[i].r[ufs[i].root(j)] == j){ G[N].push_back({i, j}); } vector seen(H + 2, vector(W + 2)); UF uf((H + 2) * (W + 2)); uf.component = 0; vector ans; vector dx = {0, 0, 1, -1}, dy = {1, -1, 0, 0}; for (int i = N; i > 0; i--){ for (auto [x, y] : G[i]){ seen[x][y] = 1; uf.component++; rep(k, 0, 4){ int s = dx[k] + x; int t = dy[k] + y; if (min(s, t) == -1 || s == H + 2 || t == W + 2) continue; if (seen[s][t]) uf.unite(x * (W + 2) + y, s * (W + 2) + t); } } ans.push_back(uf.component); } reverse(all(ans)); for (auto x : ans) yneos(x != 1); }