#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);
}
Compilation message
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);
| ^~~~~~
