#include "biscuits.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
map<pair<ll, ll>, ll>mp;
vector<ll>pre;
ll f(ll x, ll y) {
if (y < 0)return 0;
if (x == -1)return y + 1;
if (mp.find({ x,y }) != mp.end())return mp[{x, y}];
ll ret = f(x - 1, min({ pre[x],(1ll << x) - 1,y }));
ret += f(x - 1, min({ pre[x] - (1ll << x),(1ll << x) - 1,y - (1ll << x) }));
return mp[{x, y}] = ret;
}
long long count_tastiness(long long x, vector<long long> A) {
ll k = A.size(), sum = 0;
pre.clear();
mp.clear();
for (ll i = 0; i < k; i++) {
sum += (A[i] << i);
pre.push_back(sum / x);
}
for (int i = k; i <= 59; i++)pre.push_back(sum/x);
return f(59, (1ll << 60) - 1);
}
