Submission #675722

#	Time	Username	Problem	Language	Result	Execution time	Memory
675722		VodkaInTheJar	Packing Biscuits (IOI20_biscuits)	C++14	21 / 100	1092 ms	24708 KiB

biscuits

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define endl '\n'

using namespace std;

long long count_tastiness(long long x, vector <long long> a) {
    map <long long, long long> mp;
    mp[0]++;

    int sz = (int)a.size();
    for (int i = 0; ; i++) {
        map <long long, long long> new_mp;
        long long to_add = (i < sz ? a[i] : 0);
        for (auto j: mp)
            new_mp[(j.first >> 1ll) + to_add] += j.second;

        mp = new_mp;
        bool is = false;
        for (auto it = prev(new_mp.end()); it->first >= x; it--) {
            is = true;
            mp[it->first - x] += it->second;
            if (it == new_mp.begin())
                break;
        }

        if (!is && i >= sz)
            break;
    }

    long long ans = 0; 
    for (auto i: mp)
        ans += i.second;

    return ans;
}

/*
int main() {
    long long x, n;
    cin >> x >> n;

    vector <long long> a(n);
    for (int i = 0; i < n; i++)
        cin >> a[i];

    cout << count_tastiness(x, a) << endl;
}
*/

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