Submission #1237420

#	Time	Username	Problem	Language	Result	Execution time	Memory
1237420		CyberCow	드문 곤충 (IOI22_insects)	C++20	47.50 / 100	59 ms	420 KiB

insects

#include "insects.h"
#include <vector>
#include <random>
#include <algorithm>
using namespace std;
mt19937 rnd(4312);

int min_cardinality(int N)
{
	int tarbqan = 0;
	vector<int> mej;
	for (int i = 0; i < N; i++)
	{
		move_inside(i);
		if (press_button() != 1)
		{
			move_outside(i);
		}
		else
			mej.push_back(i);
	}
	tarbqan = mej.size();
	for (int i = 0; i < mej.size(); i++)
	{
		move_outside(mej[i]);
	}
	mej.clear();
	int l = 1, r = N / tarbqan, ans = 0;
	while (l <= r)
	{
		int m = (l + r) / 2;
		int x;
		for (int i = 0; i < N; i++)
		{
			move_inside(i);
			if (press_button() > m)
			{
				move_outside(i);
			}
			else
				mej.push_back(i);
		}
		if (mej.size() == tarbqan * m)
		{
			l = m + 1;
			ans = m;
		}
		else
		{
			r = m - 1;
		}
		for (int i = 0; i < mej.size(); i++)
		{
			move_outside(mej[i]);
		}
		mej.clear();
	}
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 22.5 / 75