CSES - Datatähti 2019 alku - Results
Submission details
Task:Ruudukko
Sender:Nanohenry
Submission time:2018-10-01 21:48:43 +0300
Language:C++
Status:READY
Result:31
Feedback
groupverdictscore
#1ACCEPTED31
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#2ACCEPTED0.01 s1details
#3ACCEPTED0.02 s1details
#4ACCEPTED0.02 s1details
#5ACCEPTED0.01 s1details
#6ACCEPTED0.02 s1details
#7ACCEPTED0.03 s1details
#8ACCEPTED0.01 s1details
#9ACCEPTED0.02 s1details
#10ACCEPTED0.02 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
#25ACCEPTED0.04 s3details
#26--3details
#27--3details
#28--3details
#29ACCEPTED0.03 s3details
#30ACCEPTED0.03 s3details

Code

#include <iostream>
#include <string>

using namespace std;

long n, r;
string t[500];
char c[500][500];
bool ac[500], bc[500], ar[500], br[500];
long v;

void search(int y, bool l) {
    if (!l && ar[y]) {
        search(y + 1, 0);
        return;
    }
    if (l && br[y]) {
        search(y + 1, 1);
        return;
    }
    if (y >= n) {
        if (v == n * 2 && l) {
            r++;
        }
        if (!l) {
            search(0, 1);
        }
        return;
    }
    for (long i = 0; i < n; i++) {
        if (!l) {
            if (!ac[i] && !c[y][i]) {
                ac[i] = 1;
                ar[y] = 1;
                c[y][i] = 'A';
                v++;
                search(y + 1, 0);
                ac[i] = 0;
                ar[y] = 0;
                c[y][i] = 0;
                v--;
            }
        } else {
            if (!bc[i] && !c[y][i]) {
                bc[i] = 1;
                br[y] = 1;
                c[y][i] = 'B';
                v++;
                search(y + 1, 1);
                bc[i] = 0;
                br[y] = 0;
                c[y][i] = 0;
                v--;
            }
        }
    }
}

int main() {
    cin >> n;
    for (long i = 0; i < n; i++) {
        cin >> t[i];
    }
    for (long i = 0; i < n; i++) {
        for (long j = 0; j < n; j++) {
            if (t[j][i] == 'A') {
                ac[i] = 1;
                ar[j] = 1;
                c[j][i] = 'A';
                v++;
            }
            if (t[j][i] == 'B') {
                bc[i] = 1;
                br[j] = 1;
                c[j][i] = 'B';
                v++;
            }
        }
    }
    search(0, 0);
    cout << r << '\n';
    //system("pause");
}

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