結果

問題 No.759 悪くない忘年会にしような!
ユーザー fumofumofuni
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
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 31 WA * 33
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ソースコード

diff #
プレゼンテーションモードにする

#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
template <class T>
struct SegTree {
private:
int n;//
vector<T> data;// vector
T def; //
function<T(T, T)> operation; // 使
function<T(T, T)> change;// 使
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:, _def:, _operation:,
// _change:
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]);
}
// i(0-indexed)x
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)
T query(int a, int b) {
//return _query(a, b, 0, 0, n);
return find(a,b);
}
//
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){
//operation
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;
}
}
}
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