제출 #654466

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
654466		atigun	Flight to the Ford (BOI22_communication)	C++17	컴파일 에러	0 ms	0 KiB

communication

#include<bits/stdc++.h>
#include"communication.h"

using namespace std;

void encode(int N, int X) {
  vector<int> v;
  for(int bit = 0; bit <= 10; bit++){
    bool on = (X >> bit)&1;
    v.push_back(send(on));
    v.push_back(send(on));
    while(v.end()[-1] != v.end()[-2])
      v.push_back(send(on));
  }
}

pair<int, int> decode(int N) {
  solution = 0;
  vector<int> v;
  for(int bit = 0; bit <= 10; bit++){
    bool on = 0;
    v.push_back(receive());
    v.push_back(receive());
    while(v.end()[-1] != v.end()[-2])
      v.push_back(receive());
    if(v.end()[-1])
      solution|= (1<<bit);
  }
  return make_pair(solution, solution);
}

컴파일 시 표준 에러 (stderr) 메시지

communication.cpp: In function 'std::pair<int, int> decode(int)':
communication.cpp:18:3: error: 'solution' was not declared in this scope
   18 |   solution = 0;
      |   ^~~~~~~~
communication.cpp:21:10: warning: unused variable 'on' [-Wunused-variable]
   21 |     bool on = 0;
      |          ^~