제출 #1337801

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1337801		playeragp	선물 (IOI25_souvenirs)	C++20	0 / 100	1 ms	412 KiB

souvenirs

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

vector<long long> prices;
int totalTypes;

pair<vector<int>, long long> transaction(long long M);

void determinePrice(int index) {
    long long left = prices[index - 1] - 1;
    long long right = prices[index - 1];
    
    while (left + 1 < right) {
        long long mid = (left + right) / 2;
        auto result = transaction(mid);
        
        if (result.first.empty() || result.first[0] < index) {
            left = mid;
        } else {
            right = mid;
        }
    }
    prices[index] = right;
}

void buy_souvenirs(int N, long long P0) {
    totalTypes = N;
    prices.resize(N);
    prices[0] = P0;
    
    for (int i = 1; i < N; i++) {
        determinePrice(i);
    }
    
    for (int i = 1; i < N; i++) {
        for (int j = 0; j < i; j++) {
            transaction(prices[i]);
        }
    }
}

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