CSES - Datatähti 2019 alku - Results
Submission details
Task:Ruudukko
Sender:ufokurpitsa
Submission time:2018-10-13 17:46:23 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1details
#20.01 s1details
#30.01 s1details
#40.01 s1details
#50.03 s1details
#60.02 s1details
#70.01 s1details
#80.02 s1details
#90.01 s1details
#100.01 s1details
#110.01 s2details
#120.02 s2details
#130.01 s2details
#140.02 s2details
#150.04 s2details
#160.05 s2details
#170.05 s2details
#180.06 s2details
#190.06 s2details
#200.07 s2details
#210.07 s3details
#220.07 s3details
#230.06 s3details
#240.06 s3details
#250.06 s3details
#260.06 s3details
#270.07 s3details
#280.06 s3details
#290.06 s3details
#300.07 s3details

Code

#include <iostream>

long kk(int n, int p) {
    long r = 1;
    for (int i=2; i<=n; i++) {
        r *= i;
        r %= p;
    }
    return r;
}

int main() {
    int n;
    std::cin >> n;
    long p = 1000000007;
    long xp = 1;
    long xn = kk(n,p);
    for (int k=2; k<n; k++) {
        long K[n+1];
        K[0] = 1;
        for (int i = 1; i <= n; i++)
            K[i] = 0;
        for (int i = 1; i <= k; i++)
        {
            int m = i;
            if (n < i)
                m = n;
            for (int j = m; j > 0; j--)
                K[j] = (K[j] + K[j-1])%p;
        }
        xp += ((kk(k,p) - xp )*K[n])%p;
    }
    std::cout << (xn*xp)%p;
    return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
2
..
..

correct output
2

user output
2

Test 2

Group: 1

Verdict:

input
2
..
A.

correct output
1

user output
2

Test 3

Group: 1

Verdict:

input
2
B.
.A

correct output
0

user output
2

Test 4

Group: 1

Verdict:

input
3
...
...
...

correct output
12

user output
6

Test 5

Group: 1

Verdict:

input
4
....
....
....
....

correct output
216

user output
24

Test 6

Group: 1

Verdict:

input
5
.....
.....
.....
.....
...

correct output
5280

user output
120

Test 7

Group: 1

Verdict:

input
5
....A
.....
.....
.....
...

correct output
264

user output
120

Test 8

Group: 1

Verdict:

input
5
B....
.....
.....
.A.B.
...

correct output
22

user output
120

Test 9

Group: 1

Verdict:

input
5
B.A..
....A
.....
A.B..
...

correct output
2

user output
120

Test 10

Group: 1

Verdict:

input
5
A.B..
BA...
.B.A.
...BA
...

correct output
1

user output
120

Test 11

Group: 2

Verdict:

input
10
..........
..........
..........
..........
...

correct output
306442892

user output
3628800

Test 12

Group: 2

Verdict:

input
50
.................................

correct output
694861480

user output
318608048

Test 13

Group: 2

Verdict:

input
111
.................................

correct output
555319110

user output
117286020

Test 14

Group: 2

Verdict:

input
222
.................................

correct output
108372237

user output
279856786

Test 15

Group: 2

Verdict:

input
333
.................................

correct output
259107857

user output
972452623

Test 16

Group: 2

Verdict:

input
444
.................................

correct output
19906314

user output
238337196

Test 17

Group: 2

Verdict:

input
497
.................................

correct output
224313667

user output
946271680

Test 18

Group: 2

Verdict:

input
498
.................................

correct output
929574601

user output
243293343

Test 19

Group: 2

Verdict:

input
499
.................................

correct output
600226043

user output
403377310

Test 20

Group: 2

Verdict:

input
500
.................................

correct output
198353194

user output
688653593

Test 21

Group: 3

Verdict:

input
499
.................................

correct output
840243733

user output
403377310

Test 22

Group: 3

Verdict:

input
499
........................A........

correct output
4146290

user output
403377310

Test 23

Group: 3

Verdict:

input
499
B.........A......................

correct output
173518884

user output
403377310

Test 24

Group: 3

Verdict:

input
499
...A....B........................

correct output
20044800

user output
403377310

Test 25

Group: 3

Verdict:

input
499
AB...............................

correct output
2

user output
403377310

Test 26

Group: 3

Verdict:

input
500
.................................

correct output
121064146

user output
688653593

Test 27

Group: 3

Verdict:

input
500
.................................

correct output
848435259

user output
688653593

Test 28

Group: 3

Verdict:

input
500
.....B........A..................

correct output
296240911

user output
688653593

Test 29

Group: 3

Verdict:

input
500
.A......B........................

correct output
2196

user output
688653593

Test 30

Group: 3

Verdict:

input
500
...AB............................

correct output
1

user output
688653593