Submission #467004

#	Time	Username	Problem	Language	Result	Execution time	Memory
467004		armand	Packing Biscuits (IOI20_biscuits)	C++14	0 / 100	1095 ms	332 KiB

biscuits

#include "biscuits.h"
#include <algorithm>
using namespace std;

int check_y(long long x, std::vector<long long> a, int y)
{
	long long i, k = a.size();
	for (i = 0; i < k; i++)
		if ((1 << i) > y)
			break;
	i--;
	long long t = y * x;
	long long two = 1;
	while (i>=0) {
		long long p = t / two;
		t -= min(a[i], p)*two;
		if (t == 0)
			return 1;
		i--;
		two <<= 1;
	}
	return t == 0;
}

long long count_tastiness(long long x, std::vector<long long> a) 
{
	int res = 1;
	int k = a.size();
	long long total = 0;
	long long two = 1;
	for (int i = 0; i < k; i++) {
		total += two*a[i];
		two <<= 1;
	}
	if (total < x)
		return 1;
	for (int y = 1; y <= total; y++)
		res += check_y(x, a, y);
	return res;
}

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