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Submission #562546

# Submission time Handle Problem Language Result Execution time Memory
562546 2022-05-14T15:18:34 Z four_specks Cave (IOI13_cave) C++17
100 / 100
 240 ms 480 KB 
#include "cave.h"

#include <bits/stdc++.h>

using namespace std;

namespace
{
} // namespace

void exploreCave(int N)
{
    vector<int> s(N);
    vector<int> d(N);

    vector<int> guess(N, 0);

    vector<bool> done(N, 0);

    auto toggle = [&](int l, int r) -> void
    {
        for (int i = l; i < r; i++)
        {
            if (!done[i])
                guess[i] ^= 1;
        }
    };

    for (int i = 0; i < N; i++)
    {
        int lo = 0, hi = N;

        bool last = (tryCombination(guess.data()) + N + 1) % (N + 1) > i;
        while (hi - lo > 1)
        {
            int mid = (lo + hi) / 2;
            toggle(lo, mid);
            if (last != (tryCombination(guess.data()) + N + 1) % (N + 1) > i)
            {
                last = !last;
                hi = mid;
            }
            else
                lo = mid;
        }

        s[lo] = last ^ guess[lo] ^ 1;
        d[lo] = i;
        done[lo] = 1;
        guess[lo] = s[lo];
    }

    answer(s.data(), d.data());
}

Compilation message

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:38:74: warning: suggest parentheses around comparison in operand of '!=' [-Wparentheses]
   38 |             if (last != (tryCombination(guess.data()) + N + 1) % (N + 1) > i)
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 412 KB Output is correct
2 Correct 96 ms 408 KB Output is correct
3 Correct 148 ms 428 KB Output is correct
4 Correct 148 ms 480 KB Output is correct
5 Correct 168 ms 444 KB Output is correct
6 Correct 145 ms 428 KB Output is correct
7 Correct 240 ms 340 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 304 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 152 ms 428 KB Output is correct
13 Correct 155 ms 432 KB Output is correct
14 Correct 154 ms 440 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 163 ms 428 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 162 ms 448 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 182 ms 444 KB Output is correct
7 Correct 159 ms 460 KB Output is correct
8 Correct 195 ms 440 KB Output is correct
9 Correct 221 ms 444 KB Output is correct
10 Correct 191 ms 460 KB Output is correct
11 Correct 155 ms 340 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 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 304 KB Output is correct
11 Correct 1 ms 212 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

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 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 304 KB Output is correct
11 Correct 1 ms 212 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 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 23 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 31 ms 344 KB Output is correct
24 Correct 30 ms 340 KB Output is correct
25 Correct 30 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 23 ms 372 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 34 ms 340 KB Output is correct
31 Correct 25 ms 320 KB Output is correct
32 Correct 1 ms 300 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 31 ms 340 KB Output is correct
36 Correct 28 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct

Subtask #5
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 412 KB Output is correct
2 Correct 96 ms 408 KB Output is correct
3 Correct 148 ms 428 KB Output is correct
4 Correct 148 ms 480 KB Output is correct
5 Correct 168 ms 444 KB Output is correct
6 Correct 145 ms 428 KB Output is correct
7 Correct 240 ms 340 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 304 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 152 ms 428 KB Output is correct
13 Correct 155 ms 432 KB Output is correct
14 Correct 154 ms 440 KB Output is correct
15 Correct 163 ms 428 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 162 ms 448 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 182 ms 444 KB Output is correct
21 Correct 159 ms 460 KB Output is correct
22 Correct 195 ms 440 KB Output is correct
23 Correct 221 ms 444 KB Output is correct
24 Correct 191 ms 460 KB Output is correct
25 Correct 155 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 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 304 KB Output is correct
36 Correct 1 ms 212 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 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 23 ms 340 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 31 ms 344 KB Output is correct
49 Correct 30 ms 340 KB Output is correct
50 Correct 30 ms 340 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 23 ms 372 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 34 ms 340 KB Output is correct
56 Correct 25 ms 320 KB Output is correct
57 Correct 1 ms 300 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 300 KB Output is correct
60 Correct 31 ms 340 KB Output is correct
61 Correct 28 ms 340 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 109 ms 412 KB Output is correct
64 Correct 111 ms 340 KB Output is correct
65 Correct 159 ms 448 KB Output is correct
66 Correct 101 ms 408 KB Output is correct
67 Correct 171 ms 432 KB Output is correct
68 Correct 149 ms 444 KB Output is correct
69 Correct 164 ms 444 KB Output is correct
70 Correct 1 ms 300 KB Output is correct
71 Correct 1 ms 304 KB Output is correct
72 Correct 157 ms 440 KB Output is correct
73 Correct 171 ms 436 KB Output is correct
74 Correct 157 ms 428 KB Output is correct
75 Correct 191 ms 340 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 174 ms 436 KB Output is correct
79 Correct 170 ms 436 KB Output is correct
80 Correct 186 ms 432 KB Output is correct
81 Correct 190 ms 444 KB Output is correct
82 Correct 192 ms 428 KB Output is correct
83 Correct 161 ms 360 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 29 ms 372 KB Output is correct
86 Correct 151 ms 444 KB Output is correct
87 Correct 1 ms 212 KB Output is correct
88 Correct 1 ms 308 KB Output is correct
89 Correct 28 ms 340 KB Output is correct
90 Correct 29 ms 436 KB Output is correct
91 Correct 27 ms 340 KB Output is correct
92 Correct 183 ms 448 KB Output is correct
93 Correct 214 ms 340 KB Output is correct
94 Correct 179 ms 436 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 148 ms 444 KB Output is correct
98 Correct 37 ms 348 KB Output is correct
99 Correct 160 ms 432 KB Output is correct
100 Correct 1 ms 304 KB Output is correct
101 Correct 22 ms 340 KB Output is correct
102 Correct 25 ms 340 KB Output is correct
103 Correct 155 ms 448 KB Output is correct
104 Correct 1 ms 212 KB Output is correct
105 Correct 1 ms 304 KB Output is correct
106 Correct 1 ms 304 KB Output is correct
107 Correct 27 ms 340 KB Output is correct
108 Correct 27 ms 376 KB Output is correct
109 Correct 186 ms 444 KB Output is correct
110 Correct 199 ms 428 KB Output is correct
111 Correct 1 ms 304 KB Output is correct