CSES - Datatähti 2019 alku - Results
Submission details
Task:Ruudukko
Sender:rainman
Submission time:2018-10-04 21:54:30 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.02 s1details
#20.01 s1details
#3ACCEPTED0.01 s1details
#40.01 s1details
#50.02 s1details
#60.02 s1details
#70.02 s1details
#80.01 s1details
#90.01 s1details
#10ACCEPTED0.01 s1details
#110.03 s2details
#12--2details
#13--2details
#14--2details
#15--2details
#16--2details
#17--2details
#18--2details
#19--2details
#20--2details
#21--3details
#22--3details
#23--3details
#24--3details
#25--3details
#26--3details
#27--3details
#28--3details
#29--3details
#30--3details

Code

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

string s[500];
int n;
ll c = 0;
int r1[500], r2[1000], r3[1000];

void haku(int y)    {
    if(y == n)  {
        c++;
        return;
    }
    for(int x = 0; x < n; x++)  {
        if (s[y][x] != '.') continue;
        if (r1[x] || r2[y+x] || r3[y-x+n-1]) continue;
        r1[x] = r2[y+x] = r3[y-x+n-1] = 1;
        haku(y+1);
        r1[x] = r2[y+x] = r3[y-x+n-1] = 0;
    }
}

int main()
{
    cin >> n;
    for(int i = 0; i < n; i++) cin >> s[i];
    haku(0);
    int p = pow(10,9);
    c = pow(c, 2);
    cout << c % (p - 7);
    return 0;
}

Test details

Test 1

Group: 1

Verdict:

input
2
..
..

correct output
2

user output
0

Test 2

Group: 1

Verdict:

input
2
..
A.

correct output
1

user output
0

Test 3

Group: 1

Verdict: ACCEPTED

input
2
B.
.A

correct output
0

user output
0

Test 4

Group: 1

Verdict:

input
3
...
...
...

correct output
12

user output
0

Test 5

Group: 1

Verdict:

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

correct output
216

user output
4

Test 6

Group: 1

Verdict:

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

correct output
5280

user output
100

Test 7

Group: 1

Verdict:

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

correct output
264

user output
36

Test 8

Group: 1

Verdict:

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

correct output
22

user output
16

Test 9

Group: 1

Verdict:

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

correct output
2

user output
4

Test 10

Group: 1

Verdict: ACCEPTED

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

correct output
1

user output
1

Test 11

Group: 2

Verdict:

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

correct output
306442892

user output
524176

Test 12

Group: 2

Verdict:

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

correct output
694861480

user output
(empty)

Test 13

Group: 2

Verdict:

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

correct output
555319110

user output
(empty)

Test 14

Group: 2

Verdict:

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

correct output
108372237

user output
(empty)

Test 15

Group: 2

Verdict:

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

correct output
259107857

user output
(empty)

Test 16

Group: 2

Verdict:

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

correct output
19906314

user output
(empty)

Test 17

Group: 2

Verdict:

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

correct output
224313667

user output
(empty)

Test 18

Group: 2

Verdict:

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

correct output
929574601

user output
(empty)

Test 19

Group: 2

Verdict:

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

correct output
600226043

user output
(empty)

Test 20

Group: 2

Verdict:

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

correct output
198353194

user output
(empty)

Test 21

Group: 3

Verdict:

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

correct output
840243733

user output
(empty)

Test 22

Group: 3

Verdict:

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

correct output
4146290

user output
(empty)

Test 23

Group: 3

Verdict:

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

correct output
173518884

user output
(empty)

Test 24

Group: 3

Verdict:

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

correct output
20044800

user output
(empty)

Test 25

Group: 3

Verdict:

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

correct output
2

user output
(empty)

Test 26

Group: 3

Verdict:

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

correct output
121064146

user output
(empty)

Test 27

Group: 3

Verdict:

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

correct output
848435259

user output
(empty)

Test 28

Group: 3

Verdict:

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

correct output
296240911

user output
(empty)

Test 29

Group: 3

Verdict:

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

correct output
2196

user output
(empty)

Test 30

Group: 3

Verdict:

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

correct output
1

user output
(empty)