#include "insects.h"
#include <bits/stdc++.h>
#define ve vector
#define vi ve<int>
#define ii pair<int,int>
#define ll long long
#define vvi ve<vi>
#define se second
#define fi first
using namespace std;
const int nax = 2e3+5;
const int MOD = 1e9+7;
int pref[nax];
int min_cardinality(int n) {
int type = 0;
for (int i = 0; i < n; ++i)
{
move_inside(i);
int a = press_button();
if(a == 1)
type++;
else
move_outside(i);
pref[i] = type;
}
for (int i = 0; i < n; ++i)
{
move_outside(i);
}
int l = 0,r = n, ans = 0;
while(l< r){
int md = (l+r)/2;
int nb = 0;
for (int i = 0; i < n; ++i)
{
move_inside(i);
int a = press_button();
if(a > md){
move_outside(i);
} else nb++;
}
if(type*md == nb){
l = md+1; ans = md;
} else {
r = md;
}
for (int i = 0; i < n; ++i)
{
move_outside(i);
}
}
return ans;
}
