제출 #726351

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
726351		ismayil	드문 곤충 (IOI22_insects)	C++17	50.03 / 100	201 ms	408 KiB

insects

#pragma GCC optimize("O3")
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
//g++ -std=c++17 insects.cpp stub.cpp
int D, N;
const int MAX = 3000;
int is_in[MAX];
int cnt = 0;
bool check(int m){
	vector<int> new_in;
	for(int j = 0; j < N; j++){
		if(is_in[j]) continue;
		move_inside(j);
		if(press_button() > m){
			move_outside(j);
		}else{
			cnt++;
			is_in[j] = 1;
			new_in.push_back(j);
		}
	}
	bool flag = false;
	if(cnt < m * D){
		flag = true;
		cnt -= new_in.size();
		for(auto i : new_in) move_outside(i), is_in[i] = 0;
	}
	
	return flag;
}
int min_cardinality(int n) {
	N = n;
	for(int j = 0; j < N; j++){
		move_inside(j);
		if(press_button() > 1){
			move_outside(j);
		}else{
			cnt++;
			is_in[j] = 1;
		}
	}
	D = cnt;

	int l = 1, r = N / D;
	while(l <= r){
		int m = (l + r) / 2;
		if(check(m)) r = m - 1;
		else l = m + 1;
	}
	return r;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 25.03 / 75