Submission #1285244

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285244		ecen30	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

//This is ChatGPT code. I am using this website to test different AI's and their abilities to solve IOI problems. Please understand. I do not mean to cheat. Just trying to get a good grade on my science project.

#include <vector>
#include <iostream>
#include <algorithm>
#include <utility>

using namespace std;

// Simulate the transaction function provided by the grader
pair<vector<int>, long long> transaction(long long M) {
    // This function is supposed to be provided by the grader
    // Here, it's just a placeholder to illustrate how it works
    return {{}, M};  // Return a dummy value (to be implemented by the grader)
}

void buy_souvenirs(int N, long long P0) {
    // We need to determine the price of each souvenir P[0], P[1], ..., P[N-1]
    
    vector<long long> prices(N, 0);
    prices[0] = P0;  // The price of the first souvenir is known

    // Guess the price for the remaining souvenirs using a binary search strategy
    // Start with a reasonable guess for each price and refine it with each transaction

    // Let's assume the minimum price is 1 for the cheapest souvenir
    long long min_price = 1;
    long long max_price = P0 - 1;

    // Deduce the price for each souvenir
    for (int i = 1; i < N; i++) {
        long long current_guess = (max_price + min_price) / 2;
        // Perform a transaction with the current guess
        auto [L, R] = transaction(current_guess);
        // Deduce the price based on the returned souvenirs
        if (R == 0) {
            prices[i] = current_guess;
        }
        // Adjust the guess based on whether the price is too high or too low
        if (R > 0) {
            min_price = current_guess + 1;
        } else {
            max_price = current_guess - 1;
        }
    }

    // Now that we know the prices, let's simulate the actual buying of souvenirs
    vector<int> souvenirs_count(N, 0);
    long long remaining_coins = 0;

    // Simulate the transaction process to ensure we buy exactly i souvenirs of type i
    for (int i = 1; i < N; i++) {
        // Perform transactions to buy the correct number of souvenirs
        long long coins_needed = prices[i] * (i + 1);
        auto [L, R] = transaction(coins_needed);
        souvenirs_count[i] += L.size();
        remaining_coins = R;
    }

    // Output the result
    for (int i = 0; i < N; i++) {
        cout << souvenirs_count[i] << " ";
    }
    cout << endl;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccQiM9nZ.o: in function `transaction(long long)':
stub.cpp:(.text+0x200): multiple definition of `transaction(long long)'; /tmp/ccCEOL6J.o:souvenirs.cpp:(.text+0x0): first defined here
collect2: error: ld returned 1 exit status