Submission #306058

#	Time	Username	Problem	Language	Result	Execution time	Memory
306058		lolicon	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1093 ms	384 KiB

biscuits

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

#define int long long

#define SZ(x) ((int)(x).size())
#define all(x) begin(x), end(x)
 

bool chk(int v, int x, vector<int> cnt) {
	for(int i = 0; i < x; i++) {
		int val = v;
		for(int j = SZ(cnt) - 1; j >= 0; j--) {
			int need = min(cnt[j], val / (1LL << j));
			cnt[j] -= need; val -= (1ll << j) * need; 
		}
		if(val) return false;
	}
	return true;
}

int count_tastiness(int x, vector<int> a) {
	int k = a.size();
	int sum = 0;
	for(int i = 0; i < k; i++) {
		sum = sum + (1LL << i) * a[i];
	}	 
	int ret = 1;
	if(x == 1) {
		for(int i = k - 1; i > 0; i--) {
			if(a[i - 1] >= 2) {
				a[i - 1] = a[i - 1] + a[i] * 2LL;
				a[i] = 0;
			}
		}
		for(int i = 0; i < k; i++) {
			ret = ret * (a[i] + 1LL);
		}
	}
	else {	
		for(int i = 1; i * x <= sum; i++) {
			if(chk(i, x, a)) ret++; 
		}
	}
	return ret;
}

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