제출 #158018

#제출 시각아이디문제언어결과실행 시간메모리
158018NachoLibre동굴 (IOI13_cave)C++14
0 / 100
685 ms512 KiB
#include <bits/stdc++.h>
#include "cave.h"
using namespace std;

int s[5003], d[5003], g[5003], n;
bool vp[5003], am;

int tos(int l, int r, bool st) {
	for(int i = 0; i < n; ++i) {
		if(!vp[i]) s[i] = st ^ (i < l || i > r);
	}
	return tryCombination(s);
}

void exploreCave(int N) {
	n = N;
	for(int i = 0; i < n; ++i) {
		if(tos(0, n - 1, 0) != i) am = 1;
		else am = 0;
		int l = 0, r = n - 1, m;
		while(l < r) {
			m = (l + r) / 2;
			if(tos(l, m, am) == i) {
				r = m;
			} else {
				l = m + 1;
			}
		}
		vp[l] = 1;
		d[l] = i;
		s[l] = am;
	}
	answer(s, d);
	return;
}
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