Submission #594601

#	Time	Username	Problem	Language	Result	Execution time	Memory
594601		angelo_torres	Cave (IOI13_cave)	C++17	13 / 100	25 ms	612 KiB

cave

#include "cave.h"
#include <bits/stdc++.h>

using namespace std;

int n,s[5000],d[5000];


void getd(){
	for(int i = 0; i < 5000; ++i){
		s[i] = 1-s[i];
		int dor = tryCombination(s);
		d[i] = dor, s[i] = 1-s[i]; 
	}
}

void exploreCave(int N){
	n = N;
	bool fl = 0;
	for(int i = 0; i < 5000; ++i)
		s[i] = 0;
	for(int i = 0; i < 5000; ++i){
		int dor = tryCombination(s);
		if(dor == -1){
			fl = 1;
			break;
		} 
		int l = 0, r = n;
		while(r-l > 1){
			int md = (l+r)>>1;
			for(int j = l; j < md; ++j) 
				s[j] = 1-s[j];
			int ndor = tryCombination(s);
			if(dor == ndor)
				l = md;
			else{
				r = md;
				for(int j = l; j < md; ++j) 
					s[j] = 1-s[j];
			}
		}
		d[l] = dor, s[l] = 1-s[l];
	}
	if(fl){
		getd();
	}
	answer(s,d);
	return;
}

// int main(){

// 	return 0;
// }

• Subtask 1: 0 / 12
• Subtask 2: 13 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24