#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
int count_mushrooms(int n) {
int ans = 1;
vector<int> a[2];
a[0] = {0};
vector<int> v(n - 1);
iota(v.begin(), v.end(), 1);
while (v.size()) {
int ind = a[0].size() < a[1].size();
int use = min(a[ind].size(), v.size());
vector<int> ask;
for (int i = 0; i < 2 * use; ++i) {
if (i & 1) {
ask.push_back(v.back());
v.pop_back();
}
else {
ask.push_back(a[ind][i / 2]);
}
}
int res = use_machine(ask);
a[ind ^ (res & 1)].push_back(ask.back());
if (ind) {
ans += (res + 1) / 2;
}
else {
ans += use - (res + 1) / 2;
}
}
return ans;
}
