Submission #479294

#	Time	Username	Problem	Language	Result	Execution time	Memory
479294		khoabright	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1212 ms	1553824 KiB

biscuits

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

//#define int long long 
#define ff first
#define ss second
#define pii pair<int, int>
#define all(x) x.begin(), x.end()
#define rep(i, a, b) for (int i = (int)a; i <= (int)b; ++i)
#define rep1(i, a, b) for (int i = (int)a; i >= (int)b; --i)
#define mp make_pair
#define vii vector<vector<int>>
#define ll long long 

map<ll, ll> g;

ll cal_g(ll n, ll x, vector<ll> &s) {
    //cout<<"n="<<n<<'\n';
    if (n <= 0) return 0;
    if (n == 1) return 1;

    if (g.find(n) != g.end()) return g[n];

    ll i = log2(n - 1);

    return g[n] = cal_g(1ll << i, x, s) + cal_g(min(n, 1 + s[i] / x) - (1ll << i), x, s); 
}

ll count_tastiness(ll x, vector<ll> a) {
    g.clear();
    for(int i=1; i<(int)a.size(); i++) {
        a[i] = a[i-1] + (a[i]<<i);
    }
    while(a.size()<=60) a.push_back(a.back());
	return cal_g(1+a.back(), x, a);
}

// int main() {
//     ios_base::sync_with_stdio(0);
//     cin.tie(0); //cout.tie(0);
//     int t; cin >> t;
//     while(t--){
//         long long x, k;
//         vector<long long> v;
//         cin >> k >> x;
//         v.resize(k);
//         rep(i, 0, k - 1) {
//             cin >> v[i];
//         }
//         cout << count_tastiness(x, v) << '\n';
//     }
// }

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