#include "bits/stdc++.h"
#include "communication.h"
using namespace std;
//
// --- Sample implementation for the task communication ---
//
// To compile this program with the sample grader, place:
// communication.h communication_sample.cpp sample_grader.cpp
// in a single folder, then open the terminal in this directory (right-click onto an empty spot in the directory,
// left click on "Open in terminal") and enter e.g.:
// g++ -std=c++17 communication_sample.cpp sample_grader.cpp
// in this folder. This will create a file a.out in the current directory which you can execute from the terminal
// as ./a.out
// See task statement or sample_grader.cpp for the input specification
//
void encode(int N, int X) {
for (int i = 0; i < 31; i++) {
for (int j = 1; j < 4; j++) {
X ^= j;
vector<int> a(2);
a[0] = X % 2;
a[1] = (X / 2) % 2;
send(a[0]);
send(a[1]);
X ^= j;
}
}
}
// 01 -> 10 ->
// 10 -> 01 ->
// 11 -> 00 ->
std::pair<int, int> decode(int N) {
for (int i = 0; i < 31; i++) {
for (int j = 1; j < 4; j++) {
int now = 0;
now += receive();
now += receive() * 2;
now ^= j;
if (j == 1) {
if (now == 3) return {2, 3};
if (now == 0) return {1, 3};
if (now == 1) return {2, 3};
} else if (j == 2) {
if (now == 0) return {2, 3};
if (now == 3) return {1, 3};
if (now == 2) return {2, 3};
} else {
if (now == 1) return {2, 3};
if (now == 2) return {1, 3};
if (now == 3) return {2, 3};
}
}
}
}
Compilation message
communication.cpp: In function 'std::pair<int, int> decode(int)':
communication.cpp:54:1: warning: control reaches end of non-void function [-Wreturn-type]
54 | }
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
83 ms |
200 KB |
Not correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
666 ms |
200 KB |
Not correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
