#include "cave.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define F first
#define S second
#define enter cout<<'\n';
#define INF 99999999999999999
#define MOD 1000000007
#define all(x) x.begin(),x.end()
//tryCombination
/*
#include <stdio.h>
#include <stdlib.h>
#include "cave.h"
#define MAX_N 5000
#define MAX_CALLS 70000
#define fail(s, x...) do { \
fprintf(stderr, s "\n", ## x); \
exit(1); \
} while(0)
#define N koala
#define realS kangaroo
#define realD possum
#define inv platypus
#define num_calls echidna
int N;
int realS[MAX_N];
int realD[MAX_N];
int inv[MAX_N];
int num_calls;
void answer(int S[], int D[]) {
int i;
int correct = 1;
for (i = 0; i < N; ++i)
if (S[i] != realS[i] || D[i] != realD[i]) {
correct = 0;
break;
}
if (correct)
printf("CORRECT\n");
else
printf("INCORRECT\n");
for (i = 0; i < N; ++i) {
if (i > 0)
printf(" ");
printf("%d", S[i]);
}
printf("\n");
for (i = 0; i < N; ++i) {
if (i > 0)
printf(" ");
printf("%d", D[i]);
}
printf("\n");
exit(0);
}
int tryCombination(int S[]) {
int i;
if (num_calls >= MAX_CALLS) {
printf("INCORRECT\nToo many calls to tryCombination().\n");
exit(0);
}
++num_calls;
for (i = 0; i < N; ++i)
if (S[inv[i]] != realS[inv[i]])
return i;
return -1;
}
int init() {
int i, res;
FILE *f = fopen("cave.in", "r");
if (!f)
fail("Failed to open input file.");
res = fscanf(f, "%d", &N);
for (i = 0; i < N; ++i) {
res = fscanf(f, "%d", &realS[i]);
}
for (i = 0; i < N; ++i) {
res = fscanf(f, "%d", &realD[i]);
inv[realD[i]] = i;
}
num_calls = 0;
return N;
}
*/
void exploreCave(int N)
{
int s[N]={ },d[N];
ll i=tryCombination(s);
bool no[N]={ };
while(i!=-1)
{
for(int j=0;j<N;j++)
{
if(no[j])
continue;
s[j]=s[j]^1;
int pos=tryCombination(s);
if(pos>i || pos==-1)
{
d[j]=i;
i=pos;
no[j]=1;
}
else
{
s[j]=s[j]^1;
if(pos<i )
{
no[j]=1;
d[j]=pos;
}
}
}
}
for(int j=0;j<N;j++)
{
if(no[j])
continue;
s[j]=s[j]^1;
int pos=tryCombination(s);
s[j]=s[j]^1;
d[j]=pos;
}
answer(s,d);
}
