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Submission #962786

# Submission time Handle Problem Language Result Execution time Memory
962786 2024-04-14T08:17:17 Z NValchanov Cave (IOI13_cave) C++17
100 / 100
 554 ms 600 KB 
#include <bits/stdc++.h>
#include "cave.h"

using namespace std;
typedef long long ll;

const ll MAXN = 5000;

int door[MAXN];
int pos[MAXN];
ll n;

void flip_pos(ll to)
{
    for(int i = 0; i <= to; i++)
    {
        if(door[i] == -1)
            pos[i] ^= 1;
    }
}

void init_switches()
{
    for(int i = 0; i < n; i++)
    {
        door[i] = -1;
        pos[i] = 0;
    }
}

bool check(ll k, ll i)
{
    flip_pos(k);
    ll cur = tryCombination(pos);
    flip_pos(k);

    return cur == i;
}

void exploreCave(int N)
{
    n = N;
    init_switches();

    for(int i = 0; i < n; i++)
    {
        ll cur = tryCombination(pos);

        if(cur == i)
            flip_pos(n - 1);

        ll left = 0;
        ll right = n - 1;
        ll ans = -1;
        ll mid;
        while(left <= right)
        {
            mid = (left + right) / 2;
            if(check(mid, i))
            {
                right = mid - 1;
                ans = mid;
            }
            else
                left = mid + 1;
        }
        door[ans] = i;
    }
    answer(pos, door);
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 512 KB Output is correct
2 Correct 242 ms 344 KB Output is correct
3 Correct 380 ms 548 KB Output is correct
4 Correct 246 ms 536 KB Output is correct
5 Correct 385 ms 348 KB Output is correct
6 Correct 374 ms 540 KB Output is correct
7 Correct 373 ms 548 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 351 ms 544 KB Output is correct
13 Correct 347 ms 544 KB Output is correct
14 Correct 362 ms 548 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 396 ms 524 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 357 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 391 ms 548 KB Output is correct
7 Correct 292 ms 540 KB Output is correct
8 Correct 520 ms 348 KB Output is correct
9 Correct 535 ms 544 KB Output is correct
10 Correct 500 ms 544 KB Output is correct
11 Correct 287 ms 544 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 464 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 464 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 40 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 67 ms 348 KB Output is correct
24 Correct 66 ms 348 KB Output is correct
25 Correct 65 ms 480 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 51 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 45 ms 452 KB Output is correct
31 Correct 41 ms 344 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 444 KB Output is correct
35 Correct 66 ms 488 KB Output is correct
36 Correct 63 ms 484 KB Output is correct
37 Correct 0 ms 344 KB Output is correct

Subtask #5
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 512 KB Output is correct
2 Correct 242 ms 344 KB Output is correct
3 Correct 380 ms 548 KB Output is correct
4 Correct 246 ms 536 KB Output is correct
5 Correct 385 ms 348 KB Output is correct
6 Correct 374 ms 540 KB Output is correct
7 Correct 373 ms 548 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 351 ms 544 KB Output is correct
13 Correct 347 ms 544 KB Output is correct
14 Correct 362 ms 548 KB Output is correct
15 Correct 396 ms 524 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 357 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 391 ms 548 KB Output is correct
21 Correct 292 ms 540 KB Output is correct
22 Correct 520 ms 348 KB Output is correct
23 Correct 535 ms 544 KB Output is correct
24 Correct 500 ms 544 KB Output is correct
25 Correct 287 ms 544 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 0 ms 500 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 464 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 40 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 67 ms 348 KB Output is correct
49 Correct 66 ms 348 KB Output is correct
50 Correct 65 ms 480 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 51 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 45 ms 452 KB Output is correct
56 Correct 41 ms 344 KB Output is correct
57 Correct 1 ms 600 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 444 KB Output is correct
60 Correct 66 ms 488 KB Output is correct
61 Correct 63 ms 484 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 226 ms 532 KB Output is correct
64 Correct 229 ms 536 KB Output is correct
65 Correct 371 ms 540 KB Output is correct
66 Correct 298 ms 344 KB Output is correct
67 Correct 371 ms 348 KB Output is correct
68 Correct 354 ms 544 KB Output is correct
69 Correct 425 ms 348 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Correct 354 ms 348 KB Output is correct
73 Correct 373 ms 348 KB Output is correct
74 Correct 342 ms 548 KB Output is correct
75 Correct 328 ms 348 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 1 ms 456 KB Output is correct
78 Correct 371 ms 544 KB Output is correct
79 Correct 287 ms 556 KB Output is correct
80 Correct 542 ms 548 KB Output is correct
81 Correct 506 ms 544 KB Output is correct
82 Correct 521 ms 540 KB Output is correct
83 Correct 286 ms 344 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 40 ms 488 KB Output is correct
86 Correct 274 ms 344 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 1 ms 344 KB Output is correct
89 Correct 64 ms 480 KB Output is correct
90 Correct 66 ms 344 KB Output is correct
91 Correct 64 ms 348 KB Output is correct
92 Correct 547 ms 544 KB Output is correct
93 Correct 553 ms 540 KB Output is correct
94 Correct 535 ms 544 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 1 ms 348 KB Output is correct
97 Correct 314 ms 540 KB Output is correct
98 Correct 50 ms 480 KB Output is correct
99 Correct 335 ms 544 KB Output is correct
100 Correct 0 ms 348 KB Output is correct
101 Correct 40 ms 348 KB Output is correct
102 Correct 48 ms 348 KB Output is correct
103 Correct 285 ms 548 KB Output is correct
104 Correct 1 ms 348 KB Output is correct
105 Correct 1 ms 348 KB Output is correct
106 Correct 1 ms 348 KB Output is correct
107 Correct 65 ms 348 KB Output is correct
108 Correct 62 ms 480 KB Output is correct
109 Correct 554 ms 540 KB Output is correct
110 Correct 508 ms 544 KB Output is correct
111 Correct 0 ms 344 KB Output is correct