Submission #1352853

#	Time	Username	Problem	Language	Result	Execution time	Memory
1352853		adam17	Flight to the Ford (BOI22_communication)	C++20	15 / 100	10 ms	2840 KiB

communication

#include <utility>
int send(int s);
int receive();

void encode(int N, int X) {
    send((X == 3) ? 1 : 0);
    send((X == 2) ? 1 : 0);
    send((X == 2) ? 1 : 0);
    send((X == 3) ? 1 : 0);
}

std::pair<int,int> decode(int N) {
    int a = receive(), b = receive(), c = receive(), d = receive();
    if ((a + b + c + d == 0) || (a > b) || (c < d)) {
        return std::pair<int,int>{1, 3};
    }
    if ((a < b) || (c > d)) {
        return std::pair<int,int>{1, 2};
    }
    return std::pair<int,int>{2, 3};
}

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