Submission #1042459

#	Time	Username	Problem	Language	Result	Execution time	Memory
1042459		Alihan_8	Rarest Insects (IOI22_insects)	C++17	25 / 100	223 ms	684 KiB

insects

#include "insects.h"

#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define ar array
#define all(x) x.begin(), x.end()

template <class F, class S>
bool chmin(F &u, const S &v){
	bool flag = false;
	
	if ( u > v ){
		u = v; flag |= true;
	}
	
	return flag;
}

const int C = 100;

int min_cardinality(int n) {
	vector <int> p;
	
	for ( int i = 0; i < n; i++ ){
		move_inside(i);
		
		if ( press_button() == 1 ){
			p.pb(i);
		} else{
			move_outside(i);
		}
	}
	
	if ( (int)p.size() >= C ){
		int cnt = 0;
		
		vector <int> us(n);
		
		while ( !*min_element(all(us)) ){
			cnt += 1;
			
			int lst = (int)p.size();
			
			for ( auto &j: p ){
				us[j] = 1;
				
				move_outside(j);
			} p.clear();
			
			for ( int i = 0; i < n; i++ ){
				if ( us[i] ) continue;
				
				move_inside(i);
				
				if ( press_button() == 1 ){
					p.pb(i);
				} else{
					move_outside(i);
				}
			}
			
			if ( (int)p.size() != lst ){
				break;
			}
		}
		
		return cnt;
	} else{
		vector <int> us(n);
		
		for ( auto &j: p ){
			move_outside(j);
		} p.clear();
		
		vector <int> f;
		
		while ( !*min_element(all(us)) ){
			int cnt = 0;
			
			for ( int i = 0; i < n; i++ ){
				if ( us[i] ) continue;
				
				move_inside(i);
				
				if ( press_button() == cnt + 1 ){
					cnt += 1; p.pb(i);
				} else{
					move_outside(i);
				}
			}
			
			f.pb(cnt);
			
			for ( auto &x: p ){
				us[x] = 1;
				
				move_outside(x);
			} p.clear();
		}
		
		return *min_element(all(f));
	}
}

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