This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#include <vector>
#include <cstdio>
#include <cstdlib>
#include <cassert>
#include "communication.h"
void encode(int N, int X) {
if (X == 1) {
send(0);
send(1);
} else if (X == 2) {
send(1);
send(0);
} else if (X == 3) {
send(1);
send(1);
}
}
pair<int, int> decode(int N) {
int first_bit = receive();
int second_bit = receive();
if (first_bit == 0 && second_bit == 1) {
return {1, 1};
} else if (first_bit == 1 && second_bit == 0) {
return {2, 2};
} else if (first_bit == 1 && second_bit == 1) {
return {3, 3};
}
return {1, 2};
}
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