Submission #306798

#	Time	Username	Problem	Language	Result	Execution time	Memory
306798		VEGAnn	비스킷 담기 (IOI20_biscuits)	C++17	0 / 100	2 ms	640 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
using namespace std;
typedef long long ll;
vector<ll> b;
unordered_set<ll> vls;

void rec(int ps, ll vl){
    if (ps == sz(b)){
        vls.insert(vl);
        return;
    }

    rec(ps + 1, vl);
    if (b[ps] > 0) rec(ps + 1, vl + (1ll << ps));
    if (b[ps] > 1) rec(ps + 1, vl + (1ll << (ps + 1)));
}

long long count_tastiness(long long x, std::vector<long long> a) {
    ll ans = 0;

    assert(x == 1);

    int k = sz(a);

    b = a;

    vls.clear();

    for (int cur = 0; cur < k; cur++){
        if (b[cur] == 0) continue;

        if (cur + 1 < k)
            b[cur + 1] += max(0ll, b[cur] - 2) / 2;
    }

    rec(0, 0);

    ans += sz(vls);

	return ans;
}

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