Submission #392178

#	Time	Username	Problem	Language	Result	Execution time	Memory
392178		johutha	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	6 ms	392 KiB

biscuits

#include "biscuits.h"
#include <iostream>

#define int long long

using namespace std;

int count_tastiness(int x, vector<int> a)
{
	vector<int> pref(63);
	vector<int> dp(62);
	a.resize(64);

	int v = 0;
	int pw = 1;

	for (int i = 0; i < 62; i++, pw *= 2)
	{
		v += a[i]*pw;
		int b = v - pw*x;
		int np = pw / 2;

		for (int j = i - 1; j >= 0; j--, np /= 2)
		{
			if (b >= np*x)
			{
				b -= np*x;
				dp[i] += 1 + pref[j];
			}
		}
		if (b >= 0) dp[i]++;

		pref[i + 1] = pref[i] + dp[i];
	}

	return pref.back() + 1;
}

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