#include "mushrooms.h"
#include <cstdio>
int count_mushrooms(int n)
{
std::vector<int> m, a, b;
a.push_back(0);
int ans=0;
for(int i=1;i<n;)
if(a.size() < b.size())
{
for(size_t j=0;j<b.size() && i<n;++j, ++i)
m.push_back(b[j]), m.push_back(i);
int v = use_machine(m);
m.clear();
if(v&1) a.push_back(i-1);
else b.push_back(i-1);
ans += v/2;
}
else
{
int qv=0;
for(size_t j=0;j<a.size() && i<n;++j, ++i)
m.push_back(a[j]), m.push_back(i), ++qv;
int v = use_machine(m);
m.clear();
ans += (qv-1)-v/2;
if(v&1) b.push_back(i-1);
else a.push_back(i-1);
}
return a.size()+ans;
}
