CSES - Datatähti 2019 alku - Results
Submission details
Task:Ruudukko
Sender:tuomask
Submission time:2018-10-11 21:22:37 +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
#5ACCEPTED0.03 s1details
#6ACCEPTED0.08 s1details
#7ACCEPTED0.02 s1details
#8ACCEPTED0.03 s1details
#9ACCEPTED0.01 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
#29--3details
#30ACCEPTED0.04 s3details

Code

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

int n;
int k=0;
int vaakaA[500];
int pystyA[500];
int vaakaB[500];
int pystyB[500];
bool kaytetty[500*500];

void haku(int rivi) {
  if (rivi == n*n) {
    for (int i=0; i<n; i++) {
      if (vaakaA[i] == 0) return;
      if (vaakaB[i] == 0) return;
      if (pystyA[i] == 0) return;
      if (pystyB[i] == 0) return;
    }
    k = (k + 1) % 1000000007;
    return;
  }
  haku(rivi+1);
  if (kaytetty[rivi]) return;
  if (vaakaA[rivi/n] == 0 && pystyA[rivi%n] == 0) {
    vaakaA[rivi/n]++;
    pystyA[rivi%n]++;
    haku(rivi+1);
    vaakaA[rivi/n]--;
    pystyA[rivi%n]--;
  }
  if (vaakaB[rivi/n] == 0 && pystyB[rivi%n] == 0) {
    vaakaB[rivi/n]++;
    pystyB[rivi%n]++;
    haku(rivi+1);
    vaakaB[rivi/n]--;
    pystyB[rivi%n]--;
  }
}

int main() {
  cin >> n;
  string s;
  for (int i=0; i<n; i++) {
    cin >> s;
    for (int j=0; j<n; j++) {
      if (s[j] == 'A') {
        vaakaA[i]++;
        pystyA[j]++;
        kaytetty[i*n+j] = true;
      }
      if (s[j] == 'B') {
        vaakaB[i]++;
        pystyB[j]++;
        kaytetty[i*n+j] = true;
      }
    }
  }
  haku(0);
  cout << k << "\n";
}

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:

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

correct output
2196

user output
(empty)

Test 30

Group: 3

Verdict: ACCEPTED

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

correct output
1

user output
1