Submission #1078201

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078201		Faisal_Saqib	Rarest Insects (IOI22_insects)	C++17	65.03 / 100	65 ms	1368 KiB

insects

#include <bits/stdc++.h>
using namespace std;
void move_inside(int i);
void move_outside(int i);
int press_button();
int min_cardinality(int n)
{
	set<int> machine,rem;
	int sm=1;
	machine.insert(0);
	move_inside(0);
	for(int i=1;i<n;i++)
	{
		move_inside(i);
		if(press_button()==1)
		{
			sm++;
			machine.insert(i);
		}
		else
		{
			rem.insert(i);
			move_outside(i);
		}
	}
	int sz=sm;
	int s=1;
	int e=(n/sz)+1;
	while(s+1<e)
	{
		int mid=(s+e)/2;
		vector<int> cur;
		for(auto i:rem)
		{
			move_inside(i);
			if(press_button()>mid)
			{
				move_outside(i);
			}
			else
			{
				sm++;
				cur.push_back(i);
				machine.insert(i);
				if(sm==(sz*mid))
					break;
			}
		}
		if(sm==((sz*mid)))
		{
			s=mid;
			//	 We can make values in amachin so keep
			for(auto i:cur)
				rem.erase(i);
		}
		else{
			e=mid;
			sm=0;
			rem.clear();
			for(auto i:machine)
			{
				rem.insert(i);
				move_outside(i);
			}
		}
	}
	return s;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 40.03 / 75