Submission #1365425

#TimeUsernameProblemLanguageResultExecution timeMemory
1365425activedeltorreFestival (IOI25_festival)C++20
24 / 100
49 ms12404 KiB
#include "festival.h"
#include <cassert>
#include <cstdio>
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
struct ura
{
    long long first,second,index;
};
ura vec[200005];
long long spar[200005];
bool cmp(ura a,ura b)
{
    if(a.second==b.second)
    {
        return a.first<b.first;
    }
    if(a.first==0 || b.first==0)
    {
        return a.first<b.first;
    }
    long long val1=1ll*a.first*a.second*b.second+b.first*b.second;
    long long val2=1ll*b.first*b.second*a.second+a.first*a.second;
    return val1<val2;
}
vector<ura>tip[5];
long long inf=1e16;
int howmany(long long A)
{
    int st=1,dr=tip[0].size();
    while(st<=dr)
    {
        int mij=(st+dr)/2;
        if(spar[mij]<=A)
        {
            st=mij+1;
        }
        else
        {
            dr=mij-1;
        }
    }
    return st-1;
}
std::vector<int> max_coupons(int A, std::vector<int> P, std::vector<int> T)
{
    int n=P.size();
    for(int i=0; i<n; i++)
    {
        //vec[i].first=P[i];
        //vec[i].second=T[i];
        //vec[i].index=i;
        ura nod;
        nod.index=i;
        nod.second=T[i];
        nod.first=P[i];
        tip[T[i]-1].push_back({nod});
    }
    for(int i=0;i<4;i++)
    {
        sort(tip[i].begin(),tip[i].end(),cmp);
    }
    for(int i=1;i<=tip[0].size();i++)
    {
        spar[i]=spar[i-1]+tip[0][i-1].first;
    }
    vector<int>rasp;
    long long val=A,rez=0,can1=0,can2=0;
    for(int p=0;p<=tip[1].size();p++)
    {
        if(p+howmany(val)>rez)
        {
            can1=p;
            can2=howmany(val);
            rez=can1+can2;
        }
        if(p==tip[1].size() || val<tip[1][p].first)
        {
            break;
        }
        val=(val-tip[1][p].first)*2;
        val=min(val,inf);
    }
    for(int i=0;i<can1;i++)
    {
        rasp.push_back(tip[1][i].index);
    }
    for(int i=0;i<can2;i++)
    {
        rasp.push_back(tip[0][i].index);
    }
    return rasp;
}
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