#include "cave.h"
#include <bits/stdc++.h>
using namespace std;
const int INF = 5005;
#define FOR(i, x, n) for (int i = x; i <= n; i++)
#define mem(a, x) memset(a, x, sizeof(a))
int s[INF], d[INF];
bool done[INF];
void exploreCave(int n) {
FOR(i, 0, n - 1) {
FOR(j, 0, n - 1) {
if (!done[j]) s[j] = 1;
}
int closed = tryCombination(s);
bool up = closed > i || closed == -1;
FOR(j, 0, n - 1) {
if (!done[j]) s[j] = !up;
}
int pos = -1;
int l = 0, r = n - 1;
while (l <= r) {
int m = (l + r) / 2;
FOR(j, l, m) {
if (!done[j]) s[j] = up;
}
closed = tryCombination(s);
FOR(j, l, m) {
if (!done[j]) s[j] = !up;
}
if (closed > i || closed == -1) {
pos = m;
r = m - 1;
} else {
l = m + 1;
}
}
done[pos] = true;
s[pos] = up;
d[pos] = i;
}
answer(s, d);
}
/*
* 70,000 queries = 5,000 * log2(5,000)
* O(NlogN)
* Once you solve a door in order, query it correctly
* so it basically doesn't exist anymore.
*
* Subtask 1: Just try all 1 or all 0 to find the correct
* switch orientation
* Subtask 2: Split half one into all correct and the other
* into all wrong. If half one opens, that's the new range.
* If half one doesn't, half two is the new range.
*
* Combine these two subtasks to get the final answer
*/
//
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
120 ms |
460 KB |
Output is correct |
| 2 |
Correct |
122 ms |
412 KB |
Output is correct |
| 3 |
Correct |
197 ms |
528 KB |
Output is correct |
| 4 |
Correct |
130 ms |
400 KB |
Output is correct |
| 5 |
Correct |
189 ms |
532 KB |
Output is correct |
| 6 |
Correct |
176 ms |
420 KB |
Output is correct |
| 7 |
Correct |
190 ms |
540 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
300 KB |
Output is correct |
| 12 |
Correct |
188 ms |
412 KB |
Output is correct |
| 13 |
Correct |
188 ms |
412 KB |
Output is correct |
| 14 |
Correct |
183 ms |
420 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
186 ms |
424 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
190 ms |
420 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
185 ms |
408 KB |
Output is correct |
| 7 |
Correct |
174 ms |
316 KB |
Output is correct |
| 8 |
Correct |
353 ms |
412 KB |
Output is correct |
| 9 |
Correct |
353 ms |
416 KB |
Output is correct |
| 10 |
Correct |
356 ms |
416 KB |
Output is correct |
| 11 |
Correct |
233 ms |
540 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
300 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
300 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
300 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
300 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
308 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
300 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
29 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
212 KB |
Output is correct |
| 22 |
Correct |
1 ms |
212 KB |
Output is correct |
| 23 |
Correct |
54 ms |
356 KB |
Output is correct |
| 24 |
Correct |
48 ms |
356 KB |
Output is correct |
| 25 |
Correct |
50 ms |
316 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
212 KB |
Output is correct |
| 28 |
Correct |
31 ms |
372 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
28 ms |
500 KB |
Output is correct |
| 31 |
Correct |
27 ms |
368 KB |
Output is correct |
| 32 |
Correct |
1 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
212 KB |
Output is correct |
| 35 |
Correct |
49 ms |
352 KB |
Output is correct |
| 36 |
Correct |
48 ms |
316 KB |
Output is correct |
| 37 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
120 ms |
460 KB |
Output is correct |
| 2 |
Correct |
122 ms |
412 KB |
Output is correct |
| 3 |
Correct |
197 ms |
528 KB |
Output is correct |
| 4 |
Correct |
130 ms |
400 KB |
Output is correct |
| 5 |
Correct |
189 ms |
532 KB |
Output is correct |
| 6 |
Correct |
176 ms |
420 KB |
Output is correct |
| 7 |
Correct |
190 ms |
540 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
300 KB |
Output is correct |
| 12 |
Correct |
188 ms |
412 KB |
Output is correct |
| 13 |
Correct |
188 ms |
412 KB |
Output is correct |
| 14 |
Correct |
183 ms |
420 KB |
Output is correct |
| 15 |
Correct |
186 ms |
424 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
190 ms |
420 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
185 ms |
408 KB |
Output is correct |
| 21 |
Correct |
174 ms |
316 KB |
Output is correct |
| 22 |
Correct |
353 ms |
412 KB |
Output is correct |
| 23 |
Correct |
353 ms |
416 KB |
Output is correct |
| 24 |
Correct |
356 ms |
416 KB |
Output is correct |
| 25 |
Correct |
233 ms |
540 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
1 ms |
300 KB |
Output is correct |
| 31 |
Correct |
1 ms |
212 KB |
Output is correct |
| 32 |
Correct |
1 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
212 KB |
Output is correct |
| 36 |
Correct |
1 ms |
300 KB |
Output is correct |
| 37 |
Correct |
1 ms |
212 KB |
Output is correct |
| 38 |
Correct |
1 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
1 ms |
308 KB |
Output is correct |
| 42 |
Correct |
1 ms |
212 KB |
Output is correct |
| 43 |
Correct |
0 ms |
300 KB |
Output is correct |
| 44 |
Correct |
1 ms |
212 KB |
Output is correct |
| 45 |
Correct |
29 ms |
364 KB |
Output is correct |
| 46 |
Correct |
1 ms |
212 KB |
Output is correct |
| 47 |
Correct |
1 ms |
212 KB |
Output is correct |
| 48 |
Correct |
54 ms |
356 KB |
Output is correct |
| 49 |
Correct |
48 ms |
356 KB |
Output is correct |
| 50 |
Correct |
50 ms |
316 KB |
Output is correct |
| 51 |
Correct |
1 ms |
212 KB |
Output is correct |
| 52 |
Correct |
1 ms |
212 KB |
Output is correct |
| 53 |
Correct |
31 ms |
372 KB |
Output is correct |
| 54 |
Correct |
1 ms |
212 KB |
Output is correct |
| 55 |
Correct |
28 ms |
500 KB |
Output is correct |
| 56 |
Correct |
27 ms |
368 KB |
Output is correct |
| 57 |
Correct |
1 ms |
212 KB |
Output is correct |
| 58 |
Correct |
1 ms |
212 KB |
Output is correct |
| 59 |
Correct |
1 ms |
212 KB |
Output is correct |
| 60 |
Correct |
49 ms |
352 KB |
Output is correct |
| 61 |
Correct |
48 ms |
316 KB |
Output is correct |
| 62 |
Correct |
1 ms |
212 KB |
Output is correct |
| 63 |
Correct |
126 ms |
416 KB |
Output is correct |
| 64 |
Correct |
124 ms |
412 KB |
Output is correct |
| 65 |
Correct |
259 ms |
408 KB |
Output is correct |
| 66 |
Correct |
128 ms |
396 KB |
Output is correct |
| 67 |
Correct |
189 ms |
536 KB |
Output is correct |
| 68 |
Correct |
182 ms |
556 KB |
Output is correct |
| 69 |
Correct |
181 ms |
424 KB |
Output is correct |
| 70 |
Correct |
1 ms |
224 KB |
Output is correct |
| 71 |
Correct |
1 ms |
312 KB |
Output is correct |
| 72 |
Correct |
184 ms |
500 KB |
Output is correct |
| 73 |
Correct |
182 ms |
424 KB |
Output is correct |
| 74 |
Correct |
180 ms |
420 KB |
Output is correct |
| 75 |
Correct |
196 ms |
416 KB |
Output is correct |
| 76 |
Correct |
1 ms |
212 KB |
Output is correct |
| 77 |
Correct |
1 ms |
212 KB |
Output is correct |
| 78 |
Correct |
188 ms |
540 KB |
Output is correct |
| 79 |
Correct |
171 ms |
404 KB |
Output is correct |
| 80 |
Correct |
373 ms |
420 KB |
Output is correct |
| 81 |
Correct |
352 ms |
416 KB |
Output is correct |
| 82 |
Correct |
365 ms |
416 KB |
Output is correct |
| 83 |
Correct |
175 ms |
340 KB |
Output is correct |
| 84 |
Correct |
1 ms |
212 KB |
Output is correct |
| 85 |
Correct |
28 ms |
340 KB |
Output is correct |
| 86 |
Correct |
171 ms |
416 KB |
Output is correct |
| 87 |
Correct |
1 ms |
212 KB |
Output is correct |
| 88 |
Correct |
1 ms |
304 KB |
Output is correct |
| 89 |
Correct |
49 ms |
340 KB |
Output is correct |
| 90 |
Correct |
49 ms |
356 KB |
Output is correct |
| 91 |
Correct |
49 ms |
312 KB |
Output is correct |
| 92 |
Correct |
351 ms |
416 KB |
Output is correct |
| 93 |
Correct |
363 ms |
416 KB |
Output is correct |
| 94 |
Correct |
364 ms |
412 KB |
Output is correct |
| 95 |
Correct |
1 ms |
212 KB |
Output is correct |
| 96 |
Correct |
1 ms |
212 KB |
Output is correct |
| 97 |
Correct |
198 ms |
424 KB |
Output is correct |
| 98 |
Correct |
28 ms |
372 KB |
Output is correct |
| 99 |
Correct |
178 ms |
404 KB |
Output is correct |
| 100 |
Correct |
1 ms |
212 KB |
Output is correct |
| 101 |
Correct |
28 ms |
340 KB |
Output is correct |
| 102 |
Correct |
27 ms |
368 KB |
Output is correct |
| 103 |
Correct |
174 ms |
424 KB |
Output is correct |
| 104 |
Correct |
1 ms |
212 KB |
Output is correct |
| 105 |
Correct |
1 ms |
212 KB |
Output is correct |
| 106 |
Correct |
1 ms |
304 KB |
Output is correct |
| 107 |
Correct |
49 ms |
356 KB |
Output is correct |
| 108 |
Correct |
49 ms |
340 KB |
Output is correct |
| 109 |
Correct |
345 ms |
416 KB |
Output is correct |
| 110 |
Correct |
352 ms |
340 KB |
Output is correct |
| 111 |
Correct |
1 ms |
212 KB |
Output is correct |
