CSES - Datatähti 2025 loppu

CSES - Datatähti 2025 loppu - Results

Submission details
Task:	Leikkijät
Sender:	adex720
Submission time:	2025-01-18 16:29:00 +0200
Language:	C++ (C++20)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	RUNTIME ERROR	0
#2	RUNTIME ERROR	0
#3	RUNTIME ERROR	0
#4	RUNTIME ERROR	0
#5	RUNTIME ERROR	0
#6	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	RUNTIME ERROR	0.01 s	1, 2, 5, 6	details
#2	RUNTIME ERROR	0.00 s	1, 2, 3, 5, 6	details
#3	RUNTIME ERROR	0.01 s	1, 2, 5, 6	details
#4	RUNTIME ERROR	0.00 s	1, 2, 4, 5, 6	details
#5	RUNTIME ERROR	0.00 s	2, 5, 6	details
#6	RUNTIME ERROR	0.01 s	2, 3, 5, 6	details
#7	RUNTIME ERROR	0.01 s	2, 5, 6	details
#8	RUNTIME ERROR	0.00 s	2, 4, 5, 6	details
#9	RUNTIME ERROR	0.00 s	5, 6	details
#10	RUNTIME ERROR	0.01 s	6	details
#11	RUNTIME ERROR	0.01 s	1, 2, 5, 6	details
#12	RUNTIME ERROR	0.01 s	6	details
#13	RUNTIME ERROR	0.00 s	3, 5, 6	details
#14	RUNTIME ERROR	0.00 s	3, 5, 6	details
#15	RUNTIME ERROR	0.00 s	4, 5, 6	details
#16	RUNTIME ERROR	0.01 s	5, 6	details
#17	RUNTIME ERROR	0.00 s	6	details
#18	RUNTIME ERROR	0.01 s	4, 5, 6	details
#19	RUNTIME ERROR	0.00 s	5, 6	details
#20	RUNTIME ERROR	0.01 s	6	details
#21	RUNTIME ERROR	0.00 s	6	details
#22	RUNTIME ERROR	0.01 s	5, 6	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:37:17: warning: unused variable 'debug' [-Wunused-variable]
   37 |             int debug = 5;
      |                 ^~~~~

Code

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

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

    int t, a, b;
    cin >> t;

    int n = 500;
    int seuraavat[n + 1][n + 1];
    seuraavat[1][1] = 1;

    seuraavat[2][1] = 1;
    seuraavat[2][2] = 1;

    seuraavat[3][1] = 3;
    seuraavat[3][2] = 1;
    seuraavat[3][3] = 3;

    for (int i = 4; i <= n; i++)
    {
        for (int j = 1; j <= i; j++)
        {
            seuraavat[i][j] = 0;
        }
    }

    for (int i = 4; i <= n; i++)
    {
        if (i == 21)
        {
            int debug = 5;
        }
        int edellinen = 2;
        int lisays = 2;
        int nykyinen = 4;
        for (int j = 2; j <= i; j++)
        {
            if (j == i && seuraavat[i][nykyinen])
            {
                int puuttuva;
                for (puuttuva = 1; seuraavat[i][puuttuva] || puuttuva == nykyinen; puuttuva++)
                    ;

                seuraavat[i][edellinen] = puuttuva;
                seuraavat[i][puuttuva] = puuttuva;
                break;
            }

            seuraavat[i][edellinen] = nykyinen;
            edellinen = nykyinen;
            nykyinen += lisays;
            if (nykyinen > i)
            {
                nykyinen = (nykyinen - i) * 2 - 1;
                if (nykyinen > i)
                    nykyinen -= i;
                lisays <<= 1;
            }
        }

        if (nykyinen > i)
            nykyinen -= i;
        seuraavat[i][nykyinen] = nykyinen;
    }

    for (int i = 0; i < t; i++)
    {
        cin >> a >> b;
        if ((a & 1) == 0)
        {
            if (b == 1)
            {
                cout << (a == 2 ? 2 : a + 1) << "\n";
                continue;
            }
            if (b == 3)
            {
                if (a == 2)
                {
                    cout << -1 << "\n";
                    continue;
                }

                cout << a << "\n";
                continue;
            }

            if (a + 2 == b)
            {
                cout << b << "\n";
                continue;
            }

            cout << -1 << "\n";
            continue;
        }

        int joo = 1;
        for (int i = max(a, b); i <= n; i++)
        {
            if (seuraavat[i][a] == b)
            {
                cout << i << "\n";
                joo = 0;
                break;
            }
        }

        if (joo)
        {
            cout << "-1\n";
        }
    }
}

Test details

Test 1

Group: 1, 2, 5, 6

Verdict: RUNTIME ERROR

input
`1000 42 100 73 94 1 13 31 100 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 2

Group: 1, 2, 3, 5, 6

Verdict: RUNTIME ERROR

input
`1000 54 3 42 44 30 1 52 3 ...` view save

correct output
`54 44 31 52 15 ...` view save

user output
(empty)

Test 3

Group: 1, 2, 5, 6

Verdict: RUNTIME ERROR

input
`1000 27 25 81 65 45 43 87 23 ...` view save

correct output
`-1 -1 -1 139 -1 ...` view save

user output
(empty)

Test 4

Group: 1, 2, 4, 5, 6

Verdict: RUNTIME ERROR

input
`1000 55 63 39 71 95 96 61 69 ...` view save

correct output
`65 75 -1 72 98 ...` view save

user output
(empty)

Test 5

Group: 2, 5, 6

Verdict: RUNTIME ERROR

input
`1000 222 56 871 832 207 364 919 980 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 6

Group: 2, 3, 5, 6

Verdict: RUNTIME ERROR

input
`1000 892 3 332 334 820 822 42 1 ...` view save

correct output
`892 334 822 43 108 ...` view save

user output
(empty)

Test 7

Group: 2, 5, 6

Verdict: RUNTIME ERROR

input
`1000 77 93 319 575 509 381 675 707 ...` view save

correct output
`98 607 574 713 919 ...` view save

user output
(empty)

Test 8

Group: 2, 4, 5, 6

Verdict: RUNTIME ERROR

input
`1000 969 985 233 489 403 659 427 555 ...` view save

correct output
`992 500 777 565 261 ...` view save

user output
(empty)

Test 9

Group: 5, 6

Verdict: RUNTIME ERROR

input
`1000 10375 364462 501875 499131 495774 7544 133830 316225 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 10

Group: 6

Verdict: RUNTIME ERROR

input
`100000 771321 298762 20752 494590 633649 443015 748804 831912 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 11

Group: 1, 2, 5, 6

Verdict: RUNTIME ERROR

input
`900 1 1 1 2 1 3 1 4 ...` view save

correct output
`-1 -1 3 -1 5 ...` view save

user output
(empty)

Test 12

Group: 6

Verdict: RUNTIME ERROR

input
`90000 1 1 1 2 1 3 1 4 ...` view save

correct output
`-1 -1 3 -1 5 ...` view save

user output
(empty)

Test 13

Group: 3, 5, 6

Verdict: RUNTIME ERROR

input
`1000 237542 859435 965750 179154 972602 758585 453450 751662 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 14

Group: 3, 5, 6

Verdict: RUNTIME ERROR

input
`1000 773164 1 870426 1 309736 309738 957602 957604 ...` view save

correct output
`773165 870427 309738 957604 513118 ...` view save

user output
(empty)

Test 15

Group: 4, 5, 6

Verdict: RUNTIME ERROR

input
`1000 178896 591355 54364 110987 361539 818612 275401 926643 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
(empty)

Test 16

Group: 5, 6

Verdict: RUNTIME ERROR

input
`1000 704481 704465 696919 688727 941011 949203 171023 171025 ...` view save

correct output
`-1 -1 951785 -1 -1 ...` view save

user output
(empty)

Test 17

Group: 6

Verdict: RUNTIME ERROR

input
`100000 67901 133437 637521 637537 742567 742569 864043 864044 ...` view save

correct output
`148638 637540 -1 -1 652457 ...` view save

user output
(empty)

Test 18

Group: 4, 5, 6

Verdict: RUNTIME ERROR

input
`1000 650375 650377 181841 443985 750137 750138 256969 322505 ...` view save

correct output
`-1 484136 -1 341476 850152 ...` view save

user output
(empty)

Test 19

Group: 5, 6

Verdict: RUNTIME ERROR

input
`1000 1 3 1 5 1 9 1 17 ...` view save

correct output
`3 5 10 20 40 ...` view save

user output
(empty)

Test 20

Group: 6

Verdict: RUNTIME ERROR

input
`100000 1 3 1 5 1 9 1 17 ...` view save

correct output
`3 5 10 20 40 ...` view save

user output
(empty)

Test 21

Group: 6

Verdict: RUNTIME ERROR

input
`100000 999999 1 999999 3 999999 5 999999 7 ...` view save

correct output
`1000002 1000005 1000000 1000011 1000001 ...` view save

user output
(empty)

Test 22

Group: 5, 6

Verdict: RUNTIME ERROR

input
`1000 999999 1 999999 3 999999 5 999999 7 ...` view save

correct output
`1000002 1000005 1000000 1000011 1000001 ...` view save

user output
(empty)

Datatähti 2025 loppu

Leikkijät

Compiler report

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Tasks

Submissions (adex720)