Submission #823011

#	Time	Username	Problem	Language	Result	Execution time	Memory
823011		finn__	Rarest Insects (IOI22_insects)	C++17	25 / 100	241 ms	328 KiB

insects

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

std::bitset<2000> in_machine;

int min_cardinality(int N)
{
    move_inside(0);
    in_machine[0] = 1;
    int d = 1;
    for (int i = 1; i < N; ++i)
    {
        move_inside(i);
        if (press_button() > 1)
            move_outside(i);
        else
            ++d, in_machine[i] = 1;
    }

    int M = N;
    while (1)
    {
        int const bound = M / d;
        std::vector<int> moved;

        int inside = in_machine.count();
        for (int i = 0; i < N && inside < d * bound; ++i)
            if (!in_machine[i])
            {
                move_inside(i);
                if (press_button() > bound)
                    move_outside(i);
                else
                    in_machine[i] = 1, moved.push_back(i), ++inside;
            }

        if (inside == d * bound)
        {
            return bound;
        }
        else
        {
            M = inside;
            for (auto const &i : moved)
                in_machine[i] = 0, move_outside(i);
        }
    }
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 0 / 75