This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "cave.h"
#include "bits/stdc++.h"
using namespace std;
/*
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using ordered_set = tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>;
*/
#define all(x) begin(x), end(x)
#define sz(x) (int)x.size()
using ll = long long;
const int mod = 1e9+7;
void exploreCave(int n) {
int s[n], d[n];
vector<bool> avl(n, true);
for (int i = 0; i < n; ++i) {
s[i] = 0;
d[i] = -1;
}
for (int i = 0; i < n; ++i) {
int x = tryCombination(s);
bool zero = (x > i or x == -1);
int str = 0, en = n-1, pichen = n-1;
while (str <= en) {
int temp[n];
for (int j = 0; j < n; ++j) temp[j] = (avl[j]?zero:s[j]);
for (int j = str; j <= en; ++j) {
if (avl[j]) {
temp[j] = !zero;
}
}
x = tryCombination(temp);
if (x > i or x == -1) {
if (str == en) {
d[str] = i;
s[str] = !zero;
avl[str] = false;
break;
} else {
int dif = en - str;
pichen = en;
en = str + dif / 2;
}
} else {
str = en + 1;
en = pichen;
}
}
}
answer(s, d);
}
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