Submission #307902

#	Time	Username	Problem	Language	Result	Execution time	Memory
307902		Vimmer	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1088 ms	396 KiB

biscuits

#include <bits/stdc++.h>
#include "biscuits.h"
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

#define N 100005
#define PB push_back
#define sz(x) int(x.size())
#define F first
#define M ll(1e9 + 7)
#define S second
#define all(x) x.begin(), x.end()
#define endl '\n'

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;
typedef unsigned long long ull;
//typedef tree <int, null_type, less_equal <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

ll count_tastiness(ll x, vector<ll> a)
{
    ll ans = 1;

    ll sum = 0;

    int n = 30;

    for (int i = 0; i < n; i++) {if (sz(a) == i) a.PB(0); sum += (1 << i) * a[i];}

    for (ll cur = sum; cur >= 1; cur--)
    {
        bool gd = 1;

        ll b[30];

        for (int i = 0; i < 30; i++) b[i] = a[i];

        for (int j = 30 - 1; j >= 0; j--)
            if ((1 << j) & cur)
            {
                ll need = x;

                int u = j;

                while (u >= 0 && need > 0)
                {
                    ll mn = min(need, b[u]);

                    b[u] -= mn;

                    need -= mn;

                    u--;

                    need *= 2;
                }

                if (need != 0) {gd = 0; break;}
            }


        if (gd) ans++;
    }

    return ans;
}

//int main()
//{
//    iostream::sync_with_stdio(0); ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//
//   // freopen("1.in", "r", stdin); //freopen("fcolor.out", "w", stdout);
//
//}

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