Submission #1363448

#	Time	Username	Problem	Language	Result	Execution time	Memory
1363448		hollow_breeze	Souvenirs (IOI25_souvenirs)	C++20	39 / 100	8 ms	344 KiB

souvenirs

#include "souvenirs.h"
#include <utility>
#include <vector>
#include <iostream>

using namespace std;

void buy_souvenirs(int N, long long P0) 
{
    long long i,cnt,j,ant,fol;
    pair<vector<int>, long long> res;
    if(N==2)
    {
        res = transaction(P0-1);
        return ;
    }
    else if(N==3)
    {
        res = transaction(P0-1);
        if(res.first.size()==1)
        {
            cnt=P0-1-res.second;
            transaction(cnt-1);
            transaction(cnt-1);
        }
        else
        {
            cnt=P0-1-res.second;
            if(cnt%2==0)
                cnt=cnt/2+1;
            else
                cnt=(cnt+1)/2;
            transaction(cnt-1);
        }
        return ;
    }
    fol=0;
    ant=P0;
    for(i=1;i<N;i++)
    {
        if(i<N-1)
        {
            res = transaction(ant-1);
            if(res.first.size()==2)
            {
                fol++;
                res.second++;
            }
            cnt = ant-1-res.second;
            for(j=0;j<i-1;j++)
                transaction(cnt);
            ant=cnt;
        }
        else
        {
            for(j=0;j<i-fol;j++)
                transaction(ant-1);
        }
    }
    return ;
}

• Subtask 0: 0 / 0
• Subtask 1: 4 / 4
• Subtask 2: 3 / 3
• Subtask 3: 14 / 14
• Subtask 4: 18 / 18
• Subtask 5: 0 / 28
• Subtask 6: 0 / 33