#include "bits/stdc++.h"
using namespace std;
#include "insects.h"
#ifdef N_N_C
#include "debug.h"
#else
#define cebug(...) "Arya"
#endif
#define ll long long
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r){
assert(l<=r);
return uniform_int_distribution<int> (l,r)(rng);
}
const int N=1e5+5;
const int mod=1e9+7;
int min_cardinality(int n){
set <int> s;
// vector <int> nw;
// vector <int> p(n);
// iota(p.begin(),p.end(),0);
// shuffle(p.begin(),p.end(),rng);
map <int,set<int>> mp;
int cad;
auto add = [&](int i) -> void{
s.insert(i);
move_inside(i);
};
auto del = [&](int i) -> void{
s.erase(i);
move_outside(i);
};
auto clear = [&]() -> void{
auto _s=s;
for(auto i:_s) del(i);
};
// auto check = [&](int k) -> bool{
// nw.clear();
// auto op=*mp.lower_bound(k);
// for(auto i:op.second){
// if(s.find(i)!=s.end()) continue;
// add(i);
// if(press_button()>k) del(i);
// else nw.push_back(i);
// }
// mp[k]=s;
// return (int)s.size()>=cad*k;
// };
for(int i=0; i<n; i++){
add(i);
if(press_button()>1) del(i);
}
cad=(int)s.size();
clear();
if(cad<=9){
vector <int> vis(n,0);
int type=0;
for(int i=0; i<n; i++){
if(!vis[i]){
vis[i]=++type;
move_inside(i);
for(int j=i+1; j<n; j++){
move_inside(j);
int val=press_button();
if(val==2) vis[j]=type;
move_outside(j);
}
move_outside(i);
}
}
map <int,int> brute;
for(int i=0; i<n; i++) brute[vis[i]]++;
int ans=INT_MAX;
for(auto [x,y]:brute) ans=min(ans,y);
return ans;
}
mp[1]=s;
for(int i=0; i<n; i++) mp[n].insert(i);
int l=2,r=n/cad,ans=1;
while(l<=r){
int mid=(l+r)/2;
vector <int> nw;
auto op=mp.lower_bound(mid);
for(auto i:(*op).second){
if(s.find(i)!=s.end()) continue;
add(i);
if(press_buton()>mid) del(i);
else nw.push_back(i);
}
mp[mid]=s;
if((int)s.size()>=cad*mid){
ans=mid;
l=mid+1;
}else{
r=mid-1;
for(auto i:nw) del(i);
}
}
return ans;
}
/** /\_/\
* (= ._.)
* / >💖 \>💕
**/
Compilation message
insects.cpp:107:9: warning: "/*" within comment [-Wcomment]
107 | /** /\_/\
|
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:93:7: error: 'press_buton' was not declared in this scope; did you mean 'press_button'?
93 | if(press_buton()>mid) del(i);
| ^~~~~~~~~~~
| press_button
