Submission #1285243

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285243		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 <iostream>
#include <vector>
#include <utility>

using namespace std;

// This function simulates a transaction with the seller.
// It returns a pair: 
//   - A list of souvenir types bought (in increasing order),
//   - The number of coins returned to Amaru after the transaction.
pair<vector<int>, long long> transaction(long long M) {
    // The online judge will implement this function. It returns:
    // - A vector of souvenir types bought (in increasing order),
    // - The number of coins returned.
    
    // The grader will call this function, so don't define it yourself.
    // This is just the placeholder. In the actual judge system, you do not define this.
    pair<vector<int>, long long> result;
    return result; // placeholder return
}

// Function to solve the problem and instruct Amaru to buy the souvenirs.
void buy_souvenirs(int N, long long P0) {
    // Prices array where we store the price of each souvenir type
    vector<long long> P(N, 0);
    P[0] = P0;  // Set the price of the first souvenir type

    // Deduce the prices of other souvenirs by considering possible values
    vector<long long> possible_prices(N);
    for (int i = 0; i < N; ++i) {
        possible_prices[i] = P0 - i;
    }

    // Start the deduction process. We'll use binary search or transaction exploration.
    for (int i = 1; i < N; ++i) {
        long long M = P[i-1] - 1;  // Query with a value less than the price of the previous type
        auto result = transaction(M);  // Get the transaction result
        vector<int> souvenirs = result.first;
        long long remaining = result.second;

        // Use the response to deduce the price of each type
        for (int j : souvenirs) {
            P[j] = possible_prices[j];
        }
    }

    // Now, proceed to buy the required souvenirs in exactly the right amounts.
    for (int i = 1; i < N; ++i) {
        long long M = P[i];
        auto result = transaction(M);  // Buy souvenirs of type i
        vector<int> souvenirs = result.first;
        long long remaining = result.second;
    }

    // Final output: the number of souvenirs bought for each type
    vector<int> result_count(N, 0);
    for (int i = 0; i < N; ++i) {
        result_count[i] = 1;  // Placeholder for actual logic
    }

    // Print the result to match the output format expected by the online judge
    for (int i = 0; i < N; ++i) {
        cout << result_count[i] << " ";
    }
    cout << endl;
}

int main() {
    // Input reading (adjust according to the problem's format)
    int N;
    long long P0;
    cin >> N >> P0;

    // Call the function to solve the problem
    buy_souvenirs(N, P0);

    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cctyFA7J.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc48gJUb.o:souvenirs.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cctyFA7J.o: in function `transaction(long long)':
stub.cpp:(.text+0x200): multiple definition of `transaction(long long)'; /tmp/cc48gJUb.o:souvenirs.cpp:(.text+0x0): first defined here
collect2: error: ld returned 1 exit status