CSES - Datatähti 2016 alku - Results
Submission details
Task:Tontti
Sender:Zacchon
Submission time:2015-10-11 17:16:37
Language:Java
Status:READY
Result:47
Feedback
groupverdictscore
#1ACCEPTED14
#2ACCEPTED33
#30
Test results
testverdicttimegroup
#1ACCEPTED0.17 s1details
#2ACCEPTED0.17 s1details
#3ACCEPTED0.17 s1details
#4ACCEPTED0.19 s1details
#5ACCEPTED0.18 s1details
#6ACCEPTED0.46 s2details
#7ACCEPTED0.38 s2details
#8ACCEPTED0.29 s2details
#9ACCEPTED0.31 s2details
#10ACCEPTED0.32 s2details
#11--3details
#12--3details
#13--3details
#14--3details
#15--3details

Code

public class Tontti2 {
    public static void main(String[] args) {
        IO io = new IO();
        
        int n = io.nextInt();
        int m = io.nextInt();
        int x = io.nextInt();
        
        int[][] s = new int[n+1][m+1];
        
        for (int i=1; i<=n; i++) {
            String r = io.next();
            for (int j=1; j<=m; j++) {
                if (r.charAt(j-1) == '.') {
                    s[i][j] = s[i-1][j] + s[i][j-1] - s[i-1][j-1];
                } else {
                    s[i][j] = s[i-1][j] + s[i][j-1] - s[i-1][j-1] + 1;
                }
            }
        }
        
        int c = 0;
        int aMin = Math.max(0,(int)Math.ceil(Math.sqrt(x))-1);

        for (int i=1; i <= n-aMin; i++) {
            for (int j=1; j <= m-aMin; j++) {
                for (int a=aMin; a<=n-i && a<=m-j; a++) {
                    int tr = s[i+a][j+a] - s[i-1][j+a] - s[i+a][j-1] + s[i-1][j-1];
                    if (tr == x) {
                        c++;
                    } else if (tr > x) {
                        break;
                    }
                }
            }
        }
        
        io.println(c);
        
        io.close();
    }
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
10 10 1
......*...
.......*..
*..*....*.
*....*....
...

correct output
94

user output
94

Test 2

Group: 1

Verdict: ACCEPTED

input
10 10 5
**********
**********
**********
**********
...

correct output
0

user output
0

Test 3

Group: 1

Verdict: ACCEPTED

input
10 10 10
**...*...*
*..*.**.*.
...**.*..*
*...**.*..
...

correct output
4

user output
4

Test 4

Group: 1

Verdict: ACCEPTED

input
10 10 5
****......
*.*.**..**
....*.*..*
...*.***..
...

correct output
16

user output
16

Test 5

Group: 1

Verdict: ACCEPTED

input
10 10 2
**.***..*.
...*.*....
.***.*...*
***.***..*
...

correct output
30

user output
30

Test 6

Group: 2

Verdict: ACCEPTED

input
500 500 1
.................................

correct output
9552040

user output
9552040

Test 7

Group: 2

Verdict: ACCEPTED

input
500 500 5
.................................

correct output
1536063

user output
1536063

Test 8

Group: 2

Verdict: ACCEPTED

input
500 500 25000
**...*...**..*.*..*.**.*..*.*....

correct output
288

user output
288

Test 9

Group: 2

Verdict: ACCEPTED

input
500 500 12500
**.**.*..*...*.**...*.***........

correct output
786

user output
786

Test 10

Group: 2

Verdict: ACCEPTED

input
500 500 5000
.*.*.**..*.*.**.**..*..**...*....

correct output
1763

user output
1763

Test 11

Group: 3

Verdict:

input
2000 2000 1
.................................

correct output
489611392

user output
(empty)

Test 12

Group: 3

Verdict:

input
2000 2000 5
.................................

correct output
120725884

user output
(empty)

Test 13

Group: 3

Verdict:

input
2000 2000 400000
..*..**.**.**.*.***...**.*..**...

correct output
1849

user output
(empty)

Test 14

Group: 3

Verdict:

input
2000 2000 200000
***.*....*.*..*....**..*..*.*....

correct output
2665

user output
(empty)

Test 15

Group: 3

Verdict:

input
2000 2000 80000
**.**...*.***.**....**.*....*....

correct output
5587

user output
(empty)