CSES - Datatähti 2025 alku - Results
Submission details
Task:Kortit I
Sender:Sukarth
Submission time:2024-11-10 15:24:45 +0200
Language:C++ (C++20)
Status:READY
Result:12
Feedback
groupverdictscore
#1ACCEPTED12
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3details
#2--2, 3details
#3--3details
#4--3details
#5--3details
#6--3details
#70.02 s3details
#8--3details
#9--3details
#10--3details
#11--3details
#12--3details
#13--3details
#14--3details
#15--3details
#16--3details
#17--3details
#18--3details
#19--3details
#20--3details

Code

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>

using namespace std;

pair<int, int> count_wins(const vector<int> &seq1, const vector<int> &seq2)
{
    int p1_wins = 0, p2_wins = 0;
    for (size_t i = 0; i < seq1.size(); ++i)
    {
        if (seq1[i] > seq2[i])
            ++p1_wins;
        else if (seq1[i] < seq2[i])
            ++p2_wins;
    }
    return {p1_wins, p2_wins};
}

bool next_combination(vector<int> &a, int n)
{
    int k = a.size();
    for (int i = k - 1; i >= 0; i--)
    {
        if (a[i] < n - k + i + 1)
        {
            a[i]++;
            for (int j = i + 1; j < k; j++)
                a[j] = a[j - 1] + 1;
            return true;
        }
    }
    return false;
}

tuple<bool, vector<int>, vector<int>> solve_test_case(int n, int target_a, int target_b)
{
    vector<int> p1_cards(n), p2_cards(n);
    iota(p1_cards.begin(), p1_cards.end(), 1);
    iota(p2_cards.begin(), p2_cards.end(), 1);

    do
    {
        vector<int> indices(target_a);
        iota(indices.begin(), indices.end(), 0);

        do
        {
            vector<int> temp_p2 = p2_cards;
            for (int i : indices)
            {
                swap(temp_p2[i], temp_p2[p1_cards[i] - 1]);
            }

            auto [a, b] = count_wins(p1_cards, temp_p2);
            if (a == target_a && b == target_b)
            {
                return {true, p1_cards, temp_p2};
            }
        } while (next_combination(indices, n));
    } while (next_permutation(p1_cards.begin(), p1_cards.end()));

    return {false, {}, {}};
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int repetitions;
    cin >> repetitions;

    while (repetitions--)
    {
        int n, a, b;
        cin >> n >> a >> b;

        auto [possible, p1_cards, p2_cards] = solve_test_case(n, a, b);
        if (!possible)
        {
            cout << "NO\n";
        }
        else
        {
            cout << "YES\n";
            for (int card : p1_cards)
            {
                cout << card << " ";
            }
            cout << "\n";
            for (int card : p2_cards)
            {
                cout << card << " ";
            }
            cout << "\n";
        }
    }

    return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
54
4 4 0
3 1 3
3 2 2
4 0 4
...

correct output
NO
NO
NO
NO
NO
...

user output
NO
NO
NO
NO
NO
...

Test 2

Group: 2, 3

Verdict:

input
284
6 1 0
5 0 2
7 1 5
7 7 5
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 
2 3 4 5 6 1 7 
...

user output
(empty)

Test 3

Group: 3

Verdict:

input
955
14 2 10
12 2 5
10 4 9
14 1 13
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 4

Group: 3

Verdict:

input
869
17 12 9
16 8 4
15 9 9
17 11 15
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 5

Group: 3

Verdict:

input
761
18 3 15
19 1 15
18 8 1
19 19 17
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 6

Group: 3

Verdict:

input
925
21 14 21
20 18 18
20 7 6
21 14 9
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 7

Group: 3

Verdict:

input
529
22 3 3
22 17 5
22 6 15
22 22 20
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Error:
code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.

Test 8

Group: 3

Verdict:

input
576
23 18 9
23 16 8
23 16 13
23 16 22
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)

Test 9

Group: 3

Verdict:

input
625
24 2 22
24 15 21
24 6 3
24 21 1
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 10

Group: 3

Verdict:

input
676
25 16 25
25 15 2
25 15 7
25 15 16
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 11

Group: 3

Verdict:

input
729
26 2 18
26 14 18
26 5 18
26 19 13
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 12

Group: 3

Verdict:

input
784
27 26 7
27 14 0
27 14 5
27 14 14
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 13

Group: 3

Verdict:

input
841
28 26 16
28 13 19
28 5 8
28 26 4
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 14

Group: 3

Verdict:

input
900
29 24 15
29 13 2
29 13 7
29 13 16
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 15

Group: 3

Verdict:

input
961
30 24 26
30 12 24
30 4 29
30 24 14
...

correct output
NO
NO
NO
NO
YES
...

user output
(empty)

Test 16

Group: 3

Verdict:

input
1000
15 12 6
33 18 30
44 4 26
6 6 5
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 17

Group: 3

Verdict:

input
1000
45 32 30
4 0 3
46 23 10
71 19 46
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 18

Group: 3

Verdict:

input
1000
51 29 37
75 11 72
5 2 4
31 8 26
...

correct output
NO
NO
NO
NO
YES
...

user output
(empty)

Test 19

Group: 3

Verdict:

input
1000
50 20 37
99 45 58
86 79 73
85 70 54
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)

Test 20

Group: 3

Verdict:

input
1000
26 23 5
73 53 59
64 47 41
80 75 55
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)