CSES - Datatähti 2019 alku - Results
Submission details
Task:Ruudukko
Sender:rainman
Submission time:2018-10-08 21:17:00 +0300
Language:C++
Status:READY
Result:31
Feedback
groupverdictscore
#1ACCEPTED31
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1details
#2ACCEPTED0.01 s1details
#3ACCEPTED0.01 s1details
#4ACCEPTED0.02 s1details
#5ACCEPTED0.02 s1details
#6ACCEPTED0.02 s1details
#7ACCEPTED0.01 s1details
#8ACCEPTED0.02 s1details
#9ACCEPTED0.02 s1details
#10ACCEPTED0.01 s1details
#11--2details
#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
#25ACCEPTED0.02 s3details
#26--3details
#27--3details
#28--3details
#29ACCEPTED0.03 s3details
#30ACCEPTED0.03 s3details

Code

#include <string>
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

string s[500];
int n;
int r1[500], r2[500], r3[500], r4[500];
vector<int> v1, v2;
ll c = 0;

void B(int y)    {
    if(y == n)  {
        c++;
    }
    if(!r4[y])  {
        for(int x = 0; x < n; x++)  {
            if(!r3[x] && s[y][x] == '.') {
                r4[y] = r3[x] = 1;
                B(y + 1);
                r4[y] = r3[x] = 0;
            }
        }
    }
    if(r4[y])   {
        B(y + 1);
    }
}

void A(int y)    {
    if(y == n)  {
        B(0);
    }

    if(!r2[y])  {
        for(int x = 0; x < n; x++)  {
            if(!r1[x] && s[y][x] == '.') {
                r2[y] = r1[x] = 1;
                s[y][x] = 'A';
                A(y + 1);
                r2[y] = r1[x] = 0;
                s[y][x] = '.';
            }
        }
    }
    if(r2[y])   {
        A(y + 1);
    }
}

int main()
{
    cin >> n;
    for(int i = 0; i < n; i++) {
        cin >> s[i];
        size_t l = s[i].find_first_of('A');
        if(l != string::npos)   {
            r1[l] = r2[i] = 1;
        }
        l = s[i].find_first_of('B');
        if(l != string::npos)   {
            r3[l] = r4[i] = 1;
        }
    }
    A(0);
    int p = pow(10, 9);
    cout << c % p;

    return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
2
..
..

correct output
2

user output
2

Test 2

Group: 1

Verdict: ACCEPTED

input
2
..
A.

correct output
1

user output
1

Test 3

Group: 1

Verdict: ACCEPTED

input
2
B.
.A

correct output
0

user output
0

Test 4

Group: 1

Verdict: ACCEPTED

input
3
...
...
...

correct output
12

user output
12

Test 5

Group: 1

Verdict: ACCEPTED

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

correct output
216

user output
216

Test 6

Group: 1

Verdict: ACCEPTED

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

correct output
5280

user output
5280

Test 7

Group: 1

Verdict: ACCEPTED

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

correct output
264

user output
264

Test 8

Group: 1

Verdict: ACCEPTED

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

correct output
22

user output
22

Test 9

Group: 1

Verdict: ACCEPTED

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

correct output
2

user output
2

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
(empty)

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: ACCEPTED

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

correct output
2

user output
2

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: ACCEPTED

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

correct output
2196

user output
2196

Test 30

Group: 3

Verdict: ACCEPTED

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

correct output
1

user output
1