Submission #1033529

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033529		12345678	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1131 ms	1051404 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>

using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

#define ll long long

long long count_tastiness(long long x, std::vector<long long> a) {
    ll k=a.size(), p[62];
    p[0]=1;
    for (int i=1; i<62; i++) p[i]=p[i-1]*2;
    vector<ll> cnt(62), qs(62), res, tmp;
    for (int i=0; i<k; i++) cnt[i]=a[i];
    for (int i=0; i<62; i++) qs[i]=((i==0)?0:qs[i-1])+cnt[i]*p[i];
    res.push_back(0);
    for (int i=0; i<62; i++)
    {
        tmp.clear();
        for (auto y:res) 
        {
            if (qs[i]/x>=(y+p[i])) tmp.push_back(y+p[i]);
            else break;
        }
        for (auto y:tmp) res.push_back(y); 
    }
    return res.size();
}

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