#include "biscuits.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int k=64;
int i;
int nearest(ll u){
vector<int> v;
while(u>0){
v.push_back(u%2);
u/=2;
}
for(int i=v.size()-1; i>=0; i--){
if(v[i]==1) return i;
}
return -1;
}
long long count_tastiness(long long x, vector<long long> a) {
vector<ll> s(k+1),ans(k+1);
int n=a.size();
for(i=0; i<k-1; i++){
if(i<n) s[i]+=a[i]*pow(2,i);
s[i+1]+=s[i];
}
ans[0]=1;
for(i=1; i<k; i++){
ans[i]+=ans[i-1];
int j=i-1;
ll c=1; ll p;
while(c>0){
p=pow(2,j);
c=min(s[j],2*p-1)-p;
if(c==0){
ans[i]++;
break;
}
if(c<0) break;
j=nearest(c);
ans[i]+=ans[j];
}
}
return ans[k-1];
return 0;
}
