Submission #538099

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
538099	2022-03-16 05:25:57	huangqr	Library (JOI18_library)	C++14	Compilation error	0 ms	0 KiB

library

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#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]);
      }
 
 
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Compilation message (stderr)

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);
      |  ^~~~~~