#include "message.h"
#include <bits/stdc++.h>
using namespace std;

int n;
vector<bool> A,B;
vector<bool> T;
void send_message(vector<bool> S,vector<bool> C){
    n = S.size();
    for(int i=0;i<=30;i++)
        A.push_back(0),B.push_back(1);
    for(int i=0;i<n;i++){
        if(S[i]==0) send_packet(A);
        else send_packet(B);
    }
}
vector<bool> receive_message(vector<vector<bool>> R){
    for(int i=0;i<n;i++){
        int c0=0,c1=0;
        for(int j=0;j<=30;j++)
            if(R[i][j]) c1++;
            else c0++;
        if(c0>c1) T.push_back(0);
        else T.push_back(1);
    }
    return T;
}

stub.cpp: In function ‘int {anonymous}::sz(const C&)’:
stub.cpp:27:52: error: ‘size’ is not a member of ‘std’; did you mean ‘size_t’?
   27 | template<class C> int sz(const C& c) { return std::size(c); }
      |                                                    ^~~~
      |                                                    size_t
stub.cpp: In function ‘void {anonymous}::write_int_array(const int*, int)’:
stub.cpp:70:13: warning: init-statement in selection statements only available with ‘-std=c++17’ or ‘-std=gnu++17’
   70 |         if (int ret = fwrite(arr, sizeof(int), len, fout); len != ret) {
      |             ^~~
stub.cpp: In function ‘void {anonymous}::read_int_array(int*, int)’:
stub.cpp:105:13: warning: init-statement in selection statements only available with ‘-std=c++17’ or ‘-std=gnu++17’
  105 |         if (int ret = fread(arr, sizeof(int), len, fin); len != ret) {
      |             ^~~