Submission #1052160

#	Time	Username	Problem	Language	Result	Execution time	Memory
1052160		aykhn	Packing Biscuits (IOI20_biscuits)	C++17	21 / 100	1098 ms	63296 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
 
using namespace std;
 
long long x, k;
vector<long long> a;
map<array<long long, 2>, long long> mp;
 
long long dp(long long ind, long long s)
{
	if (ind == 60) return 1LL;
	s += a[ind];
	if (mp.find({ind, s}) != mp.end()) return mp[{ind, s}];
	long long A = dp(ind + 1, (s >> 1));
	long long B = 0;
	if (x <= s) B = dp(ind + 1, (s - x) >> 1);
	return mp[{ind, s}] = A + B;
}
 
long long count_tastiness(long long X, vector<long long> A) 
{
	mp.clear();
	x = X, a = A, k = A.size();
	while (a.size() < 60) a.push_back(0);
	return dp(0LL, 0LL);
}

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