Submission #1309057

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309057		Faisal_Saqib	선물 (IOI25_souvenirs)	C++20	25 / 100	14 ms	404 KiB

souvenirs

#include <utility>
#include <vector>
#include <bits/stdc++.h>
#include "souvenirs.h"
using namespace std;

// std::pair<std::vector<int>, long long> transaction(long long M);
typedef long long ll;
void buy_souvenirs(int N,ll lst)
{
    ll P0=lst;
    ll cnt[N+2]={0};
    for(int i=1;i<N;i++)
    {
        auto ans=transaction(P0-1);
        ll sm=0,tot=0;
        for(auto x:ans.first)
        {
            cnt[x]++;
            tot++;
            sm-=(x-i);
        }        
        while(cnt[i]<i)
        {
            ans=transaction(P0-1);
            for(auto x:ans.first)
                cnt[x]++;
        }
        // cout<<sm<<' '<<tot<<endl;
        ll used=P0-1-ans.second;
        ll P1=(used-sm+tot-1)/tot;
        P0=P1;
    }
    // 1 2
    // sm = -1
    // tot = 2
    // (P0-ans.second+1)/2
}

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