제출 #618639

#제출 시각아이디문제언어결과실행 시간메모리
618639CSQ31Team Contest (JOI22_team)C++17
0 / 100
2023 ms4256 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;i++){ for(int j=0;j<i;j++){ if(a[i][0] == a[j][0])break; if(pts[j][2] <0)continue; if(pts[j][0] > a[i][1] && pts[j][1] >a[i][2]){ ans = max(ans,a[i][0] + pts[j][2]); } } pts[i][2] = -2e9; pts[i][0] = a[i][1]; for(int j=0;j<i;j++){ if(a[j][1] > a[i][1] && a[j][2] < a[i][2]){ pts[j][1] = max(pts[j][1],a[i][2]); pts[j][2] = pts[j][0] + pts[j][1]; } if(a[j][1] < a[i][1] && a[j][2] > a[i][2]){ pts[i][1] = max(pts[i][1],a[j][2]); pts[i][2] = pts[i][0] + pts[i][1]; } } } cout<<ans; }
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