Submission #925469

#	Time	Username	Problem	Language	Result	Execution time	Memory
925469		dranjohn	Flight to the Ford (BOI22_communication)	C++17	15 / 100	25 ms	3112 KiB

communication

#include "communication.h"
#include <iostream>
#include <vector>

int send_trit(int T) {
    int position = 0;
    int depth = 0;
    while (depth < 2) {
        int intent = 0;
        if (position != (T + 2) % 3) intent = 1;

        if (send(intent) == 0) {
            ++position;
            position %= 3;
        }
        else ++depth;
    }

    return (position + 1) % 3;
}

void encode(int N, int X) {
    --X;
    if (N > 3) return;

    send_trit(X);
}


int receive_trit() {
    int position = 0;
    int depth = 0;
    while (depth < 2) {
        if (receive() == 0) {
            ++position;
            position %= 3;
        }
        else ++depth;
    }

    return (position + 1) % 3;
}

std::pair<int, int> decode(int N) {
    int X = receive_trit();
    return { (X + 1) % 3 + 1, (X + 2) % 3 + 1 };
}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 85