제출 #666298

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
666298		mychecksedad	Flight to the Ford (BOI22_communication)	C++17	0 / 100	62 ms	200 KiB

communication

#include <utility>
#include <bits/stdc++.h>
using namespace std;
/**
 * use this function in encode when you want to send a certain signal
 * (it might come out wrong, and the return value tells you which signal
 * was actually sent)
 */
int send(int);

/**
 * use this function in decode; it returns the next signal that was actually
 * sent during the corresponding call of encode
 */
int receive();

/**
 * implement these two functions yourself
 */
void encode(int N, int X){
    for(int j = 0; j < 3; ++j){
        for(int k = 0; k < 5; ++k){
            send(((1<<j)&X)>0);
        }
    }
}
std::pair<int, int> decode(int N) {
    int a = 0;
    for(int j = 0; j < 3; ++j){
        int x = 0, y = 0;
        for(int k = 0; k < 5; ++k){
            bool b = receive();
            x += b;
            y += !b;
        }
        if(x>y) a += (1<<j);
    }
    return {a, a};
}

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