Submission #1075237

#	Time	Username	Problem	Language	Result	Execution time	Memory
1075237		allin27x	Packing Biscuits (IOI20_biscuits)	C++17	44 / 100	136 ms	3676 KiB

biscuits

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

const int N = 2e5+2;
int good[N];

long long count_tastiness(long long x, std::vector<long long> a) {
	a.resize(max((int)a.size(), 61ll), 0); int k = a.size();
	vector<int> s(k,0);
	s[0] = a[0];
	for (int i = 1; i < k; i++) {
		s[i] = s[i - 1] + a[i] * (1ll<<i);
	}
	int ans = 1;
	for (int i=0; i<61; i++) {
		int nw = ans;
		for (int j=0;  j<nw;  j++) {
			if ((good[j]+(1ll<<i)) <= s[i]/x) good[ans++] = good[j] + (1ll<<i);
			else break;
		}
	}
	return ans;
}

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