Submission #696076

#	Time	Username	Problem	Language	Result	Execution time	Memory
696076		garam1732	Packing Biscuits (IOI20_biscuits)	C++14	12 / 100	1079 ms	340 KiB

biscuits

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

typedef long long ll;
ll cnt[100];

long long count_tastiness(long long x, std::vector<long long> a) {
	if(x == 1) {
        for(int i = (int)a.size()-1; i > 0; i--) if(a[i-1]) a[i-1] += 2*a[i], a[i] = 0;

        ll res = 1;
        for(ll x : a) res *= (x+1);
        return res;
	}

	while(a.size() > 17) a.pop_back();

	ll ans = 0;
	for(int v = 0; v <= 100000; v++) {
        for(int j = 0; j <= 16; j++) cnt[j] = x*((v>>j)&1);

        vector<ll> b = a;
        for(int i = (int)b.size()-1; i >= 0; i--) {
            for(int j = 16; j >= i; j--) {
                while(cnt[j] && b[i] >= (1<<(j-i))) {
                    cnt[j]--;
                    b[i] -= (1<<(j-i));
                }
            }
        }

        bool flag = true;
        for(int j = 0; j <= 16; j++) {
            if(cnt[j]) {
                flag = false;
                break;
            }
        }

        if(flag) ans++;
	}

	return ans;
}

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