제출 #618660

#제출 시각아이디문제언어결과실행 시간메모리
618660CSQ31Team Contest (JOI22_team)C++17
37 / 100
2078 ms4352 KiB
#include <bits/stdc++.h> using namespace std; #define pb push_back #define fi first #define se second #define sz(a) a.size() #define all(a) a.begin(),a.end() #define owo ios_base::sync_with_stdio(0);cin.tie(0); typedef pair<int,int> pii; typedef long long int ll; const int MAXN = 5e5; array<ll,3>pts[MAXN]; int bmx[MAXN]; //i have rectangle queries but i cant do it offline? //i can but its double log on 2s //ok try n^2 first int main() { owo int n; cin>>n; vector<array<ll,3>>a(n); for(int i=0;i<n;i++){ for(int j=0;j<3;j++){ cin>>a[i][j]; } } sort(all(a),[&](array<ll,3>i,array<ll,3>j){return j[0] > i[0];}); //cout<<"sorted"<<'\n'; //for(int i=0;i<n;i++)cout<<a[i][0]<<" "<<a[i][1]<<" "<<a[i][2]<<'\n'; ll ans = -1; for(int i=0;i<n;){ int k = i; while(k+1<n && a[k][0] == a[k+1][0])k++; for(int x=i;x<=k;x++){ for(int j=0;j<x;j++){ if(a[x][0] == a[j][0])break; if(pts[j][2] <0)continue; if(pts[j][1] > a[x][1] && pts[j][2] >a[x][2]){ ans = max(ans,a[x][0] + pts[j][0]); } } } for(int x=i;x<=k;x++){ pts[x][0] = -2e9; pts[x][1] = a[x][1]; for(int j=0;j<x;j++){ if(a[j][1] > a[x][1] && a[j][2] < a[x][2]){ pts[j][2] = max(pts[j][2],a[x][2]); pts[j][0] = pts[j][1] + pts[j][2]; } if(a[j][1] < a[x][1] && a[j][2] > a[x][2]){ pts[x][2] = max(pts[x][2],a[j][2]); pts[x][0] = pts[x][1] + pts[x][2]; } } } i = k+1; } cout<<ans; }
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