Submission #1252780

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252780		nickolasarapidis	Souvenirs (IOI25_souvenirs)	C++20	0 / 100	1 ms	412 KiB

souvenirs

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

#define F first
#define S second

void buy_souvenirs(int N, long long P0){
    pair<vector<int>, long long> a;
    vector<int> cnt(N , 0);
    long long lo = 1, up = P0;
    for(int i = 1; i < N; i++){
        long long l = lo, r = up;
        while(l <= r){
            int m = (l + r)/2;
            a = transaction(m);
            for(auto u : a.F){
                cnt[u]++;
            }
            if(a.F.size() == 1 and a.F.back() == i){
                for(int j = cnt[i]; j < i; j++){
                    a = transaction(m);
                }
                lo = m;
                break;
            }
            else if(a.F.back() > i){
                l = m + 1;
            }
            else{
                r = m - 1;
            }
        }
    }
}

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