#include "message.h"
using namespace std;
vector<bool> add_blank(vector<bool> A, vector<bool> C) {
vector<bool> ret;
reverse(A.begin(), A.end());
for (int i = 0; i < 31; i++) {
if (C[i]) ret.push_back(0);
else {
ret.push_back(A.back());
A.pop_back();
}
}
return ret;
}
void send_message(vector<bool> M, vector<bool> C) {
int S = (int)(M.size());
vector<bool> T(31, 1), F(31, 0);
for (int i = 0; i < 30; i++) {
if (C[i]) send_packet(T);
else send_packet(F);
}
for (int i = 0; i < S; i += 16) {
vector<bool> A(16, 0);
for (int j = 0; j < 16; j++) {
A[j] = (i+j < S) ? M[i+j] : 0;
}
send_packet(add_blank(A, C));
}
vector<bool> A(16, 0);
for (int j = 0; j < 16; j++) {
if (j < S%16) A[j] = 1;
else A[j] = 0;
}
send_packet(add_blank(A, C));
}
vector<bool> rem_blank(vector<bool> A, vector<bool> C) {
vector<bool> ret;
for (int i = 0; i < 31; i++) {
if (C[i]) continue;
else {
ret.push_back(A[i]);
}
}
return ret;
}
vector<bool> receive_message(vector<vector<bool>> R) {
vector<bool> C(31, 0);
for (int i = 0; i < 30; i++) {
vector<bool> V = R[i];
int a = 0, b = 0; // 0 - 1
for (int i = 0; i < 31; i++) {
if (V[i]) b++;
else a++;
}
if (a > b) C[i] = 0;
else C[i] = 1;
}
int a = 0, b = 0; // 0 - 1
for (int i = 0; i < 30; i++) {
if (C[i]) b++;
else a++;
}
if (a < 16) C[30] = 0;
else C[30] = 1;
vector<bool> ret;
for (int i = 30; i < R.size()-1; i++) {
vector<bool> V = rem_blank(R[i], C);
for (int j = 0; j < 16; j++) ret.push_back(V[j]);
}
vector<bool> V = rem_blank(R.back(), C);
for (int i = 0; i < 16; i++) {
if (!V[i]) ret.pop_back();
}
return ret;
}
