#include "message.h"
#include <bits/stdc++.h>
using namespace std;
void send_message(vector<bool> M, vector<bool> C)
{
vector<int> idx;
for (int i = 0; i < 31; i++)
{
if (C[i] == 0) idx.push_back(i);
}
vector<vector<bool>> R(66, vector<bool>(31, 0));
vector<bool> real;
for (int i = 0; i < 1025 - (int)M.size() - 1; i++) real.push_back(0);
real.push_back(1);
for (int i = 0; i < M.size(); i++) real.push_back(M[i]);
idx.push_back(31 + idx[0]);
int nxt[31];
for (int i = 0; i < 16; i++)
{
int val = idx[i + 1] - idx[i];
nxt[idx[i]] = idx[i + 1];
R[val - 1][idx[i]] = 1;
}
for (int i = 0, cur = 0; i < 66; i++)
{
for (int j = 0; j < 31; j++)
{
if (C[j] == 1) continue;
if (nxt[j] - j > i) continue;
if (cur < 1025) R[i][j] = real[cur++];
}
}
for (int i = 0; i < 66; i++) send_packet(R[i]);
}
vector<int> adj[31];
int used[31], par[31];
vector<int> cyc;
int dfs(int a)
{
used[a] = 1;
for (int &v : adj[a])
{
if (used[v] == 2) continue;
if (used[v] == 1)
{
int x = a;
while (1)
{
cyc.push_back(x);
if (x == v) break;
x = par[x];
}
used[a] = 2;
return 1;
}
par[v] = a;
if (dfs(v))
{
used[a] = 2;
return 1;
}
}
used[a] = 2;
return 0;
}
vector<bool> receive_message(vector<vector<bool>> R)
{
for (int i = 0; i < 31; i++) adj[i].clear(), used[i] = 0, par[i] = 0;
vector<bool> res;
int val[31];
for (int i = 0; i < 31; i++)
{
int j = 0;
while (j < 66 && R[j][i] == 0) j++;
val[i] = j;
adj[i].push_back((i + j + 1) % 31);
}
vector<int> idx;
for (int i = 0; i < 31; i++)
{
if (!used[i])
{
cyc.clear();
dfs(i);
if (cyc.size() > idx.size()) idx = cyc;
}
}
sort(idx.begin(), idx.end());
vector<int> ok(31, 0);
for (int i : idx) ok[i] = 1;
for (int i = 0; i < 66; i++)
{
for (int j = 0; j < 31; j++)
{
if (!ok[j]) continue;
if (val[j] >= i) continue;
if (res.size() < 1025) res.push_back(R[i][j]);
}
}
vector<bool> real;
int i = 0;
while (i < res.size() && res[i] == 0) i++;
for (i++; i < res.size(); i++) real.push_back(res[i]);
return real;
}
