#include "biscuits.h"
#include <iostream>
#include <unordered_map>
#include <map>
#include <utility>
#include <functional>
#include <cassert>
using namespace std;
using ll = long long ;
ll x;
vector<ll> a;
map<pair<ll,ll>, ll> dp;
ll calc(ll rem, ll i) {
if(dp.count({rem, i})) return dp[{rem, i}];
ll orig=rem;
if(i<(int)a.size() || rem>=x) {
if(i<(int)a.size()) rem+=a[i];
ll ans=calc(rem/2, i+1);
if(rem>=x) {
ans+=calc((rem-x)/2, i+1);
}
return dp[{orig, i}]=ans;
}else return 1;
}
ll count_tastiness(ll x_, vector<ll> a_) {
a=a_;
x=x_;
a.resize(60);
for(int i=0;i<60;++i) {
if(a[i]>=x+2) {
ll diff=a[i]-(x+1);
a[i]-=(diff+1)/2*2;
a[i+1]+=(diff+1)/2;
}
}
dp.clear();
//~ for(auto i:a) std::cerr<<i<<" ";
//~ cerr<<"\n";
ll res=calc(0, 0);
//~ for(auto i:dp) cerr<<"{"<<i.first.first<<";"<<i.first.second<<"} -> "<<i.second<<"\n";
return res;
}
