Submission #1297856

#	Time	Username	Problem	Language	Result	Execution time	Memory
1297856		bangchan	Message (IOI24_message)	C++20	Compilation error	0 ms	0 KiB

message

#include "message.h"
#include <iostream>
#include <vector>
#include <map>
#include <algorithm>
#include <limits.h>
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<bool> vb;
typedef vector<double> vd;
typedef vector<string> vs;
typedef vector<char> vc;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef map<int, int> mii;
typedef vector<vl> vvl;
typedef pair<ll, ll> pll;
typedef vector<pll> vpl;

#define F first
#define S second
#define yes cout << "YES" << endl
#define no cout << "NO" << endl
#define pb push_back
#define forn(i, x, n) for (ll i = x; i < n; i++)
#define fornl(i, x, n) for(ll i = x; i >= n; i--)
#define all(x) x.begin(), x.end()
#define mod 1000000007
#define inf 10000000000000

void send_message(vector<bool> m, vector<bool> c) {
  for(auto &k : m){
    vb a(31, k);
    send_packet(a);
  }
}

vector<bool> receive_message(vector<vector<bool>> r) {
  vb a;
  forn(i, 0, r.size()){
    ll qo = 0, qn = 0;
    forn(j, 0, 31){
      if(r[i][j] == 0) qo++;
      else qn++;
    }
    if(qo > qn) a.pb(0);
    else a.pb(1);
  }
  return a;
}

Compilation message (stderr)

message.cpp: In function 'void send_message(std::vector<bool>, std::vector<bool>)':
message.cpp:36:17: error: cannot bind non-const lvalue reference of type 'std::_Bit_reference&' to an rvalue of type 'std::_Bit_iterator::reference'
   36 |   for(auto &k : m){
      |                 ^