제출 #786161

#제출 시각아이디문제언어결과실행 시간메모리
786161khshg드문 곤충 (IOI22_insects)C++17
10 / 100
341 ms304 KiB
#include"insects.h"
#include<bits/stdc++.h>
using namespace std;

int min_cardinality(int N) {
	set<int> alr;
	int pr = -1;
	for(int j = 1;; ++j) {
		int cnt = 0;
		for(int i = 0; i < N; ++i) {
			if(!alr.insert(i).second) continue;
			move_inside(i);
			int ks = press_button();
			if(ks == j) { ++cnt; continue; }
			alr.erase(i);
			move_outside(i);
		}
		if(j > 1 && cnt != pr) {
			return j - 1;
		}
		pr = cnt;
	}
	exit(-1);
	return -1;
}
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