#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
long long count_tastiness(long long x, std::vector<long long> a) {
for (int i = 0; i < int(a.size()); ++i) {
if (a[i] > x + 1) {
ll diff = a[i] - (x + 1);
ll div = (diff + 1) / 2;
a[i] -= div * 2;
if (i == int(a.size()) - 1) {
a.push_back(0);
}
a[i + 1] += div;
}
}
a.push_back(0);
reverse(a.begin(), a.end());
int n = int(a.size());
vector<ll> dp(n + 1, 0ll);
dp[0] = 1;
for (int i = 0; i < n; ++i) {
// case 1: no
dp[i + 1] += dp[i];
// case 2: yes
if (a[i] >= x) {
dp[i + 1] += dp[i];
continue;
}
ll lack = x;
for (int j = i; j < n; ++j) {
lack -= a[j];
if (lack <= 0) {
dp[j + 1] += dp[i];
lack += x;
}
lack *= 2;
if (lack > 2 * (x + 1)) {
break;
}
}
}
return dp[n];
}
