#include <bits/stdc++.h>
#include <message.h>
using namespace std;
#define ll long long
#define vec vector
string to_string(vec<bool> numbers) {
string text = "{";
for (auto i = numbers.begin(); i != numbers.end(); i++) {
if (*i) {text += '1';}
else {text += '0';}
if (next(i) != numbers.end()) {text += ", ";}
} text += '}';
return text;
}
string to_string(vec<vec<bool>> numbers) {
string text = "{";
int indexo = 0;
for (auto i = numbers.begin(); i != numbers.end(); i++) {
text += to_string(indexo) + ": " + to_string(*i);
indexo++;
if (next(i) != numbers.end()) {text += "\n";}
} text += '}';
return text;
}
vec<bool> receive_message(vec<vec<bool>> R) {
int leftbound = 0, rightbound = 30;
int i = 0;
while (leftbound < rightbound) {
int temp = (leftbound + rightbound) / 2;
vec<bool> packet = R[i];
int numofzeros = 0, numofones = 0;
for (int j = 0; j < 31; j++) {
if (packet[j] == 1) {numofones++;}
else {numofzeros++;}
}
if (numofzeros >= 16) {rightbound = temp;}
else {leftbound = temp + 1;}
//cout << numofzeros << " " << numofones << endl;
i++;
} int index = leftbound;
vec<bool> C(31, 1);
bool is_break = false;
if (index != 30) {
int icopy = i;
int indexofC = 0;
C[index] = 0;
C[index + 1] = 0;
while (!is_break) {
if (indexofC == index) {indexofC += 2;}
if (indexofC < 31) {
C[indexofC] = R[icopy][index];
indexofC++;
} if (indexofC < 31) {
C[indexofC] = R[icopy][index + 1];
indexofC++;
} if (icopy == 19) {is_break = true;}
icopy++;
} icopy--;
} else {
C = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0};
}
vec<bool> lastpacket = R[R.size() - 1];
vec<bool> binary;
for (int j = 0; j < 31; j++) {
if (C[j] == 0) {
binary.push_back(lastpacket[j]);
if (binary.size() == 11) {break;}
}
} int poweroftwo = 1024;
int n = 0;
for (int i = 0; i < 11; i++) {
n += binary[i] * poweroftwo;
poweroftwo /= 2;
}
//-------------------------------------------------------------------------
vec<bool> M;
is_break = false;
for (int j = i; j < R.size() - 1; j++) {
if (is_break) {break;}
for (int k = 0; k < 31; k++) {
if (C[k] == 0) {
if (M.size() == n) {is_break = true; break;}
if (index == 30 || j > 19) {
// +character
M.push_back(R[j][k]);
} else if (j == 19) {
if (k != index + 1) {M.push_back(R[j][k]);}
// only if k != index + 1
} else { // index < 30 and i <= 18
if (k != index && k != index + 1) {
M.push_back(R[j][k]);
}
// only if k != index and k != index + 1
}
}
}
}
//---------------------------------------------------------------------------
//cout << endl << to_string(M) << endl;
//cout << to_string(C);
return M;
}
void send_message(vec<bool> M, vec<bool> C) {
int n = M.size();
vec<vec<bool>> packets;
int index = 30;
for (int i = 0; i < 30; i++) {
if (C[i] == 0 && C[i + 1] == 0) {
index = i;
break;
}
}
int leftbound = 0, rightbound = 30;
while (leftbound < rightbound) {
int temp = (leftbound + rightbound) / 2;
vec<bool> packet;
if (index > temp) {
leftbound = temp + 1;
packet.resize(31, 1);
} else {
rightbound = temp;
packet.resize(31, 0);
}
packets.push_back(packet);
}
//cout << to_string(packets) << endl << endl;
bool is_break = false;
int indexofmsg = 0, indexofC = 0;
int indexinlastmsg;
if (index == 30) {indexofC = 31;}
while (!is_break) {
vec<bool> packet(31, 0);
for (int j = 0; j < 31; j++) {
//cout << j << " " << indexofmsg << " " << indexofC << " " << alreadyknown << endl;
if (indexofC == index) {indexofC += 2;}
if ((j == index || j == index + 1) && indexofC < 31) {
packet[j] = C[indexofC];
indexofC++;
} else if (C[j] == 0 && indexofmsg < n) {
packet[j] = M[indexofmsg];
indexofmsg++;
if (indexofmsg == n) {indexinlastmsg = j;}
}
}
if (indexofmsg == n && indexofC == 31) {is_break = true;}
packets.push_back(packet);
}
//cout << n;
vec<bool> lastpacket(31, 0);
vec<bool> binary;
int poweroftwo = 1024;
while (poweroftwo != 0) {
if (n >= poweroftwo) {
n -= poweroftwo;
binary.push_back(1);
} else {binary.push_back(0);}
poweroftwo /= 2;
}
int j = 0;
for (int i = 0; i < 31; i++) {
if (C[i] == 0) {
lastpacket[i] = binary[j]; j++;
if (j == 11) {break;}
}
} packets.push_back(lastpacket);
//cout << n << endl << endl;
//cout << to_string(packets) << endl;
//cout << to_string(M) << endl;
//cout << to_string(C) << endl;
//cout << endl << to_string(M) << endl;
for (int i = 0; i < packets.size(); i++) {
send_packet(packets[i]);
}
//receive_message(packets);
}
