#include "cave.h"
#include <bits/stdc++.h>
#define all(s) s.begin(), s.end()
using namespace std;
using vi = vector<int>;
const int MAXN = 5'000;
int switches[MAXN];
// door triggered by switchID
int door[MAXN];
int gN;
// returns N instead of -1 when all doors are open
int getLastDoor()
{
int lastDoor = tryCombination(switches);
if (lastDoor == -1)
lastDoor = gN;
return lastDoor;
}
void flipSwitches(int i, int j, vi &ids)
{
for (int k = i; k <= j; k++)
switches[ids[k]] = !switches[ids[k]];
}
void exploreCave(int N)
{
gN = N;
vi unassignedSwitches;
for (int i = 0; i < N; i++)
unassignedSwitches.push_back(i);
// doors up to curDoor EXCEPT curDoor are open
for (int curDoor = 0; curDoor < N; curDoor++)
{
int doorOpen = getLastDoor() > curDoor;
int respSwitch;
int lo = 0, hi = unassignedSwitches.size() - 1;
while (lo < hi)
{
int mid = (lo + hi) / 2;
flipSwitches(lo, mid, unassignedSwitches);
int lastDoor = getLastDoor();
bool check = false;
if (doorOpen)
{
if (lastDoor == curDoor)
check = true;
}
else if (lastDoor > curDoor)
check = true;
if (check)
hi = mid;
else
lo = mid + 1;
flipSwitches(lo, mid, unassignedSwitches);
}
respSwitch = unassignedSwitches[lo];
unassignedSwitches.erase(find(all(unassignedSwitches), respSwitch));
door[respSwitch] = curDoor;
if (!doorOpen)
switches[respSwitch] = !switches[respSwitch];
}
answer(switches, door);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
101 ms |
396 KB |
Output is correct |
2 |
Correct |
102 ms |
420 KB |
Output is correct |
3 |
Correct |
161 ms |
424 KB |
Output is correct |
4 |
Correct |
107 ms |
340 KB |
Output is correct |
5 |
Correct |
165 ms |
428 KB |
Output is correct |
6 |
Correct |
155 ms |
440 KB |
Output is correct |
7 |
Correct |
159 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
149 ms |
560 KB |
Output is correct |
13 |
Correct |
149 ms |
340 KB |
Output is correct |
14 |
Correct |
153 ms |
548 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
164 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
143 ms |
428 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
168 ms |
420 KB |
Output is correct |
7 |
Correct |
132 ms |
436 KB |
Output is correct |
8 |
Correct |
142 ms |
444 KB |
Output is correct |
9 |
Correct |
144 ms |
340 KB |
Output is correct |
10 |
Correct |
143 ms |
432 KB |
Output is correct |
11 |
Correct |
118 ms |
444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
17 ms |
372 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
20 ms |
384 KB |
Output is correct |
24 |
Correct |
21 ms |
312 KB |
Output is correct |
25 |
Correct |
22 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
308 KB |
Output is correct |
28 |
Correct |
23 ms |
592 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
18 ms |
340 KB |
Output is correct |
31 |
Correct |
17 ms |
340 KB |
Output is correct |
32 |
Correct |
0 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 |
24 ms |
340 KB |
Output is correct |
36 |
Correct |
21 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
101 ms |
396 KB |
Output is correct |
2 |
Correct |
102 ms |
420 KB |
Output is correct |
3 |
Correct |
161 ms |
424 KB |
Output is correct |
4 |
Correct |
107 ms |
340 KB |
Output is correct |
5 |
Correct |
165 ms |
428 KB |
Output is correct |
6 |
Correct |
155 ms |
440 KB |
Output is correct |
7 |
Correct |
159 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
149 ms |
560 KB |
Output is correct |
13 |
Correct |
149 ms |
340 KB |
Output is correct |
14 |
Correct |
153 ms |
548 KB |
Output is correct |
15 |
Correct |
164 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
143 ms |
428 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
168 ms |
420 KB |
Output is correct |
21 |
Correct |
132 ms |
436 KB |
Output is correct |
22 |
Correct |
142 ms |
444 KB |
Output is correct |
23 |
Correct |
144 ms |
340 KB |
Output is correct |
24 |
Correct |
143 ms |
432 KB |
Output is correct |
25 |
Correct |
118 ms |
444 KB |
Output is correct |
26 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
0 ms |
212 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
0 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
212 KB |
Output is correct |
41 |
Correct |
0 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
0 ms |
212 KB |
Output is correct |
44 |
Correct |
0 ms |
212 KB |
Output is correct |
45 |
Correct |
17 ms |
372 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
0 ms |
212 KB |
Output is correct |
48 |
Correct |
20 ms |
384 KB |
Output is correct |
49 |
Correct |
21 ms |
312 KB |
Output is correct |
50 |
Correct |
22 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
212 KB |
Output is correct |
52 |
Correct |
0 ms |
308 KB |
Output is correct |
53 |
Correct |
23 ms |
592 KB |
Output is correct |
54 |
Correct |
0 ms |
212 KB |
Output is correct |
55 |
Correct |
18 ms |
340 KB |
Output is correct |
56 |
Correct |
17 ms |
340 KB |
Output is correct |
57 |
Correct |
0 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 |
24 ms |
340 KB |
Output is correct |
61 |
Correct |
21 ms |
340 KB |
Output is correct |
62 |
Correct |
1 ms |
212 KB |
Output is correct |
63 |
Correct |
107 ms |
440 KB |
Output is correct |
64 |
Correct |
106 ms |
568 KB |
Output is correct |
65 |
Correct |
159 ms |
468 KB |
Output is correct |
66 |
Correct |
106 ms |
448 KB |
Output is correct |
67 |
Correct |
162 ms |
468 KB |
Output is correct |
68 |
Correct |
149 ms |
468 KB |
Output is correct |
69 |
Correct |
160 ms |
468 KB |
Output is correct |
70 |
Correct |
0 ms |
212 KB |
Output is correct |
71 |
Correct |
1 ms |
308 KB |
Output is correct |
72 |
Correct |
152 ms |
460 KB |
Output is correct |
73 |
Correct |
152 ms |
584 KB |
Output is correct |
74 |
Correct |
152 ms |
464 KB |
Output is correct |
75 |
Correct |
141 ms |
472 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
0 ms |
304 KB |
Output is correct |
78 |
Correct |
166 ms |
476 KB |
Output is correct |
79 |
Correct |
137 ms |
468 KB |
Output is correct |
80 |
Correct |
146 ms |
468 KB |
Output is correct |
81 |
Correct |
145 ms |
468 KB |
Output is correct |
82 |
Correct |
144 ms |
472 KB |
Output is correct |
83 |
Correct |
122 ms |
460 KB |
Output is correct |
84 |
Correct |
0 ms |
308 KB |
Output is correct |
85 |
Correct |
18 ms |
340 KB |
Output is correct |
86 |
Correct |
112 ms |
476 KB |
Output is correct |
87 |
Correct |
1 ms |
212 KB |
Output is correct |
88 |
Correct |
1 ms |
212 KB |
Output is correct |
89 |
Correct |
22 ms |
320 KB |
Output is correct |
90 |
Correct |
20 ms |
392 KB |
Output is correct |
91 |
Correct |
20 ms |
384 KB |
Output is correct |
92 |
Correct |
159 ms |
468 KB |
Output is correct |
93 |
Correct |
140 ms |
588 KB |
Output is correct |
94 |
Correct |
141 ms |
472 KB |
Output is correct |
95 |
Correct |
1 ms |
212 KB |
Output is correct |
96 |
Correct |
0 ms |
212 KB |
Output is correct |
97 |
Correct |
132 ms |
468 KB |
Output is correct |
98 |
Correct |
23 ms |
372 KB |
Output is correct |
99 |
Correct |
149 ms |
476 KB |
Output is correct |
100 |
Correct |
1 ms |
212 KB |
Output is correct |
101 |
Correct |
18 ms |
340 KB |
Output is correct |
102 |
Correct |
19 ms |
388 KB |
Output is correct |
103 |
Correct |
114 ms |
460 KB |
Output is correct |
104 |
Correct |
0 ms |
212 KB |
Output is correct |
105 |
Correct |
0 ms |
304 KB |
Output is correct |
106 |
Correct |
1 ms |
212 KB |
Output is correct |
107 |
Correct |
21 ms |
340 KB |
Output is correct |
108 |
Correct |
20 ms |
384 KB |
Output is correct |
109 |
Correct |
144 ms |
464 KB |
Output is correct |
110 |
Correct |
139 ms |
468 KB |
Output is correct |
111 |
Correct |
0 ms |
212 KB |
Output is correct |