Submission #303491

#	Time	Username	Problem	Language	Result	Execution time	Memory
303491		aljasdlas	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1091 ms	384 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;

#define int long long
int x;
vector<int> a;

int recurse(int cur, int i) {
	// if(i == 60) {
	// 	cerr << bitset<60>(cur) << " " << i << endl;
	// }
	if(i == 60) return 1;

	a[i+1] += a[i]/2;
	int res = recurse(cur, i+1);
	a[i+1] -= a[i]/2;

	if(a[i] >= x) {
		a[i+1] += (a[i]-x)/2;
		res += recurse(cur + (1ll<<i), i+1);
		a[i+1] -= (a[i]-x)/2;
	}

	return res;
}

long long count_tastiness(long long x_, vector<long long> a_) {
	x=x_; a=a_;
	while(a.size() <= 62) a.push_back(0);
	int ans = recurse(0, 0);
	return ans;
}

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