#include "biscuits.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
typedef long long ll;
using namespace __gnu_pbds;
ll count_tastiness(ll x, vector<ll> a)
{
while (a.size() <= 60)
a.push_back(0);
ll s[61];
s[60] = 0;
for (int i = 59; i >= 0; i--)
{
s[i] = a[i] + s[i + 1] * 2;
if (s[i] >= 3 * x)
s[i] = 3 * x;
}
cc_hash_table<ll, ll>M[61];
function<ll(ll, int)>get = [&](ll d, int i)->ll
{
if (i == 60)
return d / x + 1;
bool ok = false;
ll sum = d * 2;
for (int j = i; j < 60; j++)
{
sum /= 2;
sum += a[j];
if (sum >= x)
{
ok = true;
break;
}
}
if (!ok)
return 1;
if (a[i] + d < x)
{
return get((d + a[i]) / 2, i + 1);
}
else
{
return get((d + a[i]) / 2, i + 1) + get((d + a[i] - x) / 2, i + 1);
}
};
return get(0, 0);
}
