제출 #1316315

#제출 시각아이디문제언어결과실행 시간메모리
1316315ezzzay축제 (IOI25_festival)C++20
5 / 100
39 ms6688 KiB
//#include "festival.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ff first
#define ss second
#define ll long long

std::vector<int> max_coupons(int A, std::vector<int> P, std::vector<int> T) {
    int N=P.size();
    vector<vector<pair<int,int>>> v(5);
    for(int i=0;i<N;i++){
        v[T[i]].pb({P[i],i});
    }
    for(int i=1;i<=2;i++){
        sort(v[i].begin(),v[i].end());
    }

    vector<ll> ps((int)v[1].size());
    if(v[1].size()>0){
        ps[0]=v[1][0].ff;
    }
    for(int i=1;i<v[1].size();i++){
        ps[i]=ps[i-1]+(ll)v[1][i].ff;
    }

    pair<int,int> cnt={0,0};   // <<< FIX HERE
    cnt.ff = upper_bound(ps.begin(),ps.end(),A)-ps.begin();

    ll H=A;
    for(int i=0;i<v[2].size();i++){
        if(v[2][i].ff>H)break;
        H-=v[2][i].ff;
        H*=2;
        int h = upper_bound(ps.begin(),ps.end(),H)-ps.begin();
        cnt = max(cnt,{i+1+h,i+1});
    }

    vector<int> ans;
    for(int i=0;i<cnt.ss;i++){
        ans.pb(v[2][i].ss);
    }
    for(int i=0;i<cnt.ff-cnt.ss;i++){
        ans.pb(v[1][i].ss);
    }
    return ans;
}
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