#include <cassert>
#include "communication.h"
#include <vector>
//
// --- 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) {
assert(N == 3 && (X == 1 || X == 2 || X == 3));
if (X == 1) {
send(0);
send(0);
send(0);
send(0);
}
else if (X == 2) {
send(1);
send(1);
send(1);
send(1);
}
else {
send(1);
send(0);
send(0);
send(1);
}
}
std::pair<int, int> decode(int N) {
std::vector<int> over;
for (int i = 0; i < (1<<4); i++) if (__builtin_popcount(i) <= 2) over.push_back(i);
std::vector<int> who [1<<4];
for (int i : over) who[i].push_back(1);
for (int i : over) who[i^(1+8)].push_back(2);
for (int i : over) who[i^(1+2+4+8)].push_back(3);
for (int i = 0; i < (1<<4); i++) {
while ((int)(who[i].size()) < 2) {
who[i].push_back(1);
}
assert((int)(who[i].size()) <= 2);
}
return {1, 2};
int comp = 0;
for (int i = 0; i < 4; i++) {
int u = receive();
if (u) {
comp |= (1<<i);
}
}
return {who[comp][0], who[comp][1]};
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
200 KB |
Security violation! |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
324 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
