#include <bits/extc++.h>
#include "biscuits.h"
using ll = long long;
template <class T> using Vec = std::vector<T>;
template <class T, class U> using HashTable = __gnu_pbds::gp_hash_table<T, U>;
template <class F> struct RecLambda: private F {
explicit RecLambda(F&& f): F(std::forward<F>(f)) {}
template <class... Args> decltype(auto) operator() (Args&&... args) const {
return F::operator()(*this, std::forward<Args>(args)...);
}
};
ll count_tastiness(ll x, Vec<ll> a) {
std::array<HashTable<ll, ll>, 60> table;
a.resize(60);
return RecLambda([&](auto&& dfs, int k, ll s) -> ll {
if (k == 60) return 0;
if (table[k].find(s) != table[k].end()) {
return table[k][s];
}
s += a[k];
ll ret = dfs(k + 1, s / 2);
if (s >= x) {
ret += 1 + dfs(k + 1, (s - x) / 2);
}
return table[k][s] = ret;
})(0, 0) + 1;
}
