結果
問題 | No.759 悪くない忘年会にしような! |
ユーザー |
|
提出日時 | 2022-05-24 23:24:43 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,512 bytes |
コンパイル時間 | 2,420 ms |
コンパイル使用メモリ | 215,136 KB |
最終ジャッジ日時 | 2025-01-29 15:09:37 |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 31 WA * 33 |
ソースコード
#include<bits/stdc++.h>using namespace std;#define rep(i,n) for(ll i=0;i<n;i++)#define repl(i,l,r) for(ll i=(l);i<(r);i++)#define per(i,n) for(ll i=(n)-1;i>=0;i--)#define perl(i,r,l) for(ll i=r-1;i>=l;i--)#define fi first#define se second#define pb push_back#define ins insert#define pqueue(x) priority_queue<x,vector<x>,greater<x>>#define all(x) (x).begin(),(x).end()#define CST(x) cout<<fixed<<setprecision(x)#define rev(x) reverse(x);using ll=long long;using vl=vector<ll>;using vvl=vector<vector<ll>>;using pl=pair<ll,ll>;using vpl=vector<pl>;using vvpl=vector<vpl>;const ll MOD=1000000007;const ll MOD9=998244353;const int inf=1e9+10;const ll INF=4e18;const ll dy[8]={1,0,-1,0,1,1,-1,-1};const ll dx[8]={0,1,0,-1,1,-1,1,-1};template <typename T> inline bool chmax(T &a, T b) {return ((a < b) ? (a = b, true) : (false));}template <typename T> inline bool chmin(T &a, T b) {return ((a > b) ? (a = b, true) : (false));}//0-indexed,2冪のセグメントツリーtemplate <class T>struct SegTree {private:int n;// 葉の数vector<T> data;// データを格納するvectorT def; // 初期値かつ単位元function<T(T, T)> operation; // 区間クエリで使う処理function<T(T, T)> change;// 点更新で使う処理T find(int a, int b) {T val_left = def, val_right = def;for (a += (n - 1), b += (n - 1); a < b; a >>= 1, b >>= 1){if ((a & 1) == 0){val_left = operation(val_left, data[a]);}if ((b & 1) == 0){val_right = operation(data[--b],val_right);}}return operation(val_left, val_right);}public:// _n:必要サイズ, _def:初期値かつ単位元, _operation:クエリ関数,// _change:更新関数SegTree(size_t _n, T _def, function<T(T, T)> _operation,function<T(T, T)> _change=[](T a,T b){return b;}): def(_def), operation(_operation), change(_change) {n = 1;while (n < _n) {n *= 2;}data = vector<T>(2 * n - 1, def);}void set(int i, T x) { data[i + n - 1] = x; }void build() {for (int k=n-2;k>=0;k--) data[k] = operation(data[2*k+1],data[2*k+2]);}// 場所i(0-indexed)の値をxで更新void update(int i, T x) {i += n - 1;data[i] = change(data[i], x);while (i > 0) {i = (i - 1) / 2;data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]);}}T all_prod(){return data[0];}// [a, b)の区間クエリを実行T query(int a, int b) {//return _query(a, b, 0, 0, n);return find(a,b);}// 添字でアクセスT operator[](int i) {return data[i + n - 1];}};template <class T>class Seg2D{int H=1,W=1;T def;function<T(T,T)> operation;function<T(T,T)> change;vector<ll> height;vector<vector<ll>> width;vector<SegTree<T>> st;public:Seg2D(vector<ll> x,vector<ll> y,T _def,function<T(T,T)> _operation,function<T(T,T)> _change){def=_def;operation=_operation;change=_change;height=x;sort(all(height));height.erase(unique(all(height)),height.end());while(H<height.size())H<<=1;width.resize(H*2-1);rep(i,x.size()){int idx=lower_bound(all(height),x[i])-height.begin();width[idx+H-1].emplace_back(y[i]);}for(int i=H-1;i<H*2-1;i++){sort(all(width[i]));width[i].erase(unique(all(width[i])),width[i].end());}for(int i=H-2;i>=0;i--){merge(all(width[i*2+1]),all(width[i*2+2]),back_inserter(width[i]));width[i].erase(unique(all(width[i])),width[i].end());}rep(i,H*2-1){//上位のセグメントは両方operationにしてるif(i<H-1){st.push_back(SegTree<T>(width[i].size(),_def,_operation,_operation));}else{st.push_back(SegTree<T>(width[i].size(),_def,_operation,_change));}}}void update(ll x,ll y,T val){ll idx=lower_bound(all(height),x)-height.begin();idx+=H-1;while(1){ll idy=lower_bound(all(width[idx]),y)-width[idx].begin();st[idx].update(idy,val);if(!idx)break;idx=(idx-1)/2;}}T query(ll _x1,ll _x2,ll _y1,ll _y2){int x1=lower_bound(all(height),_x1)-height.begin();int x2=lower_bound(all(height),_x2)-height.begin();T val_left=def,val_right=def;for(x1+=H-1,x2+=H-1;x1<x2;x1>>=1,x2>>=1){if((x1&1)==0){int y1=lower_bound(all(width[x1]),_y1)-width[x1].begin();int y2=lower_bound(all(width[x1]),_y2)-width[x1].begin();val_left=operation(val_left,st[x1].query(y1,y2));}if((x2&1)==0){x2--;int y1=lower_bound(all(width[x2]),_y1)-width[x2].begin();int y2=lower_bound(all(width[x2]),_y2)-width[x2].begin();val_right=operation(st[x2].query(y1,y2),val_right);}}return operation(val_left,val_right);}};int main(){ll n;cin >> n;vl x(n),y(n),z(n);rep(i,n)cin >> x[i] >> y[i] >> z[i];Seg2D<ll> st(x,y,-1,[](ll a,ll b){return max(a,b);},[](ll a,ll b){return b;});rep(i,n){st.update(x[i],y[i],z[i]);}rep(i,n){if(st.query(x[i],x[i]+1,y[i],y[i]+1)>z[i]){continue;}auto q=max(st.query(x[i]+1,inf,y[i],inf),st.query(x[i],inf,y[i]+1,inf));//cout << q <<"zzz" << endl;if(q<=z[i]){cout << i+1 << endl;}}}