#include "message.h"
#include <bits/stdc++.h>
using namespace std;
void send_message(std::vector<bool> M, std::vector<bool> C) {
vector<vector<bool>> packets(66, vector<bool>(31, false));
vector<int> positions, distance;
for (int i = 0; i < 31; i++){
if (!C[i]){
positions.push_back(i);
}
}
for (int i = 1; i < 16; i++){
distance.push_back(positions[i] - positions[i-1]);
}
distance.push_back(positions[0] + 31 - positions[15]);
for (int i = 0; i < 16; i++){
for (int j = 0; j < distance[i]-1; j++){
packets[j][positions[i]] = true;
}
}
M.push_back(1);
while (M.size() < 1025){
M.push_back(0);
}
int pos = 0;
for (int i = 0; i < 16; i++){
for (int j = distance[i]; j < 66; j++){
packets[j][positions[i]] = M[pos];
pos++;
}
}
for (int i = 0; i < 66; i++){
send_packet(packets[i]);
}
}
std::vector<bool> receive_message(std::vector<std::vector<bool>> R) {
vector<int> connections;
vector<int> positions;
vector<bool> output;
for (int i = 0; i < 31; i++){
connections.push_back(i+1);
int p = 0;
while (p < 40){
if (R[p][i]){
connections[i]++;
p++;
}
else {
break;
}
}
connections[i] %= 31;
}
vector<int> cache(31, -1);
for (int i = 0; i < 31; i++){
int cur = i;
bool f = false;
for (int j = 0; j < 16; j++){
cur = connections[cur];
if (cur == i){
f = (j == 15);
break;
}
}
if (f){
cur = i;
for (int j = 0; j < 16; j++){
positions.push_back(cur);
cur = connections[cur];
}
break;
}
}
for (int i = 0; i < 16; i++){
for (int j = (connections[positions[i]] - positions[i] + 31)%31; j < 66; j++){
output.push_back(R[j][positions[i]]);
}
}
while (!output.back()){
output.pop_back();
}
output.pop_back();
return output;
}
