Submission #1051724

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051724		aykhn	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1077 ms	428 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>

using namespace std;

long long x, k;
vector<long long> a, pre;

int cnt(int ind, int s)
{
	if (ind == 60) return 1;
	if (ind < k) s += (a[ind] << ind);
	int res = 0;
	if (x <= (s >> ind) && (x << ind) <= s) res += cnt(ind + 1, s - (x << ind));
	res += cnt(ind + 1, s);
	return res;
}

long long count_tastiness(long long X, vector<long long> A) 
{
	x = X, a = A, k = A.size();
	return cnt(0, 0);
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23