#include "message.h"
#include <bits/stdc++.h>
using namespace std;
vector<bool> l;
void send_message(vector<bool> s, vector<bool> c) {
int ij=s.size(), ik=0; vector<bool> k(ij), v(31, 1); l.assign(31, 0);
while(c[ik]==1&&ik<31){send_packet(v); ik++;}
while(ik<31)
{
if(c[ik]==0){l[ik]=1;}
for(int i=0; i<31; i++)
{
if(l[i]==1){v[i]=c[ik]; ik++;}
}
send_packet(v);
}
for(int i=0; i<31; i++)
{
if(c[i]==0){vector<bool> v(31, 0); send_packet(v);}
else{vector<bool> v(31, 1); send_packet(v);}
}
vector<int> mi; for(int i=0; i<31; i++){if(c[i]==0)mi.push_back(i);}
vector<bool> ne; int sz=s.size()+4, r1=16-(sz%16); r1%=16;
for(int i=0; i<4; i++){ne.push_back((r1&1)); r1>>=1;}
for(int i=0; i<s.size(); i++)ne.push_back(s[i]);
r1=16-(sz%16); r1%=16;
for(int i =0; i<r1; i++)
{
ne.push_back(0);
}
int to=ne.size()/16, pr=0;
for(int i=0; i<to; i++)
{
vector<bool> ts(31, 0);
for(int j=0; j<16; j++)ts[mi[j]]=ne[i*16+j];
send_packet(ts);
}
}
vector<bool> receive_message(vector<vector<bool>> r) {
vector<bool> h; int ij=r.size(),ik; vector<int> k;
for(int i=0; i<31&&i<ij; i++)
{
for(int j=0; j<31; j++)
{
if(l[j]){if(!r[i][j])k.push_back(j);}
}
}
vector<bool> a;
for(int i=31; i<ij; i++)
{
for(auto x: k){a.push_back(r[i][x]);}
}
if(a.size()<4) return h;
int y=0;for(int i=3; i>=0; i--){y<<=1; if(a[i])y+=1;}
int ty=a.size(); for(int i=4; i<ty-y; i++)h.push_back(a[i]);
return h;
}
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