Submission #457905

#	Time	Username	Problem	Language	Result	Execution time	Memory
457905		rainboy	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	118 ms	332 KiB

biscuits

#include "biscuits.h"

using namespace std;

typedef vector<long long> vll;

const int N = 60, Z = 100000;

long long max(long long a, long long b) { return a > b ? a : b; }

long long count_tastiness(long long x, vll aa) {
	int n = aa.size(), i, cnt;
	long long y;

	cnt = 0;
	for (y = 0; x * y <= Z; y++) {
		long long a = 0;

		for (i = N - 1; i >= 0; i--) {
			if ((y & 1LL << i) != 0)
				a += x;
			a = max(a - (i < n ? aa[i] : 0), 0) * 2;
		}
		if (a == 0)
			cnt++;
	}
	return cnt;
}

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