제출 #538099

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
538099		huangqr	도서관 (JOI18_library)	C++14	컴파일 에러	0 ms	0 KiB

library

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

void Solve(int N)
{
	vector<int>M(N,1);
	vector<int>ans;
	vector<int>unknown;
	for(int i=1;i<=N;i++)unknown.push_back(i);
	for(int i=0;i<N;i++){//Locating an edge, letting it be L
		M[i]=0;
		if(Query(M)==1){
			ans.push_back(i+1);
			unknown.erase(remove(unknown.begin(),unknown.end(),i+1),unknown.end());
			break;
		}
		M[i]=1;
	}
	if(ans.empty())Answer(ans);
	while((int)ans.size()<N){
		vector<int>space=unknown,a,b;
		while(space.size()>1){
			int halfsize=space.size()/2;
			for(int i=0;i<halfsize;i++){
				a.push_back(space[i]);
			}
			for(int i=halfsize;i<(int)space.size();i++){
				b.push_back(space[i]);
			}
			//assert(a.size()&&b.size());
			fill(M.begin(),M.end(),0);
			for(auto x:a)M[x-1]=1;
			int pre = Query(M);
			M[ans.back()-1]=1;
			int aft = Query(M);
			if(pre==aft)space=a;
			else space=b;
			a.clear();
			b.clear();
		}
		ans.push_back(*(space.begin()));
		unknown.erase(remove(unknown.begin(),unknown.end(),*(space.begin())),unknown.end());
	}
	Answer(ans);
}

컴파일 시 표준 에러 (stderr) 메시지

library.cpp: In function 'void Solve(int)':
library.cpp:13:6: error: 'Query' was not declared in this scope
   13 |   if(Query(M)==1){
      |      ^~~~~
library.cpp:20:17: error: 'Answer' was not declared in this scope
   20 |  if(ans.empty())Answer(ans);
      |                 ^~~~~~
library.cpp:34:14: error: 'Query' was not declared in this scope
   34 |    int pre = Query(M);
      |              ^~~~~
library.cpp:45:2: error: 'Answer' was not declared in this scope
   45 |  Answer(ans);
      |  ^~~~~~