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Datatähti 2016 alku

Tontti

  • Start: 2015-09-28 00:00:00
  • End: 2015-10-12 00:00:00
  • Contest has ended
CSES - Datatähti 2016 alku - Results
Submission details
Task:Tontti
Sender:testUser
Submission time:2015-10-09 09:20:31 +0300
Language:Java
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.17 s1details
#2ACCEPTED0.17 s1details
#30.17 s1details
#40.18 s1details
#50.17 s1details
#60.26 s2details
#70.26 s2details
#80.23 s2details
#90.24 s2details
#100.28 s2details
#110.34 s3details
#120.34 s3details
#130.34 s3details
#140.35 s3details
#150.34 s3details

Code

/**
 * Created by Frans on 5.10.2015.
 */
public class Tontti{
 
    static int height;
    static int width;
    static byte[][] kentta;
    static int[][] kenttaSumma;
    static int treeWanted;
    static int trees;
    static int minSize;
    static int runAmount;
 
    public static void main(String[] args){
        IO io = new IO();
 
        height = io.nextInt();
        width = io.nextInt();
        treeWanted = io.nextInt();
        trees = 0;
 
        kentta = new byte[width+1][height+1];
        kenttaSumma = new int[width+1][height+1];
 
        //calculate trees and save it in to array and summed area table
        for (int y=1; y<=height; y++) {
            String line = io.next();
            int tmpRivi = 0;
            for (int x=1; x<=width; x++){
                if (line.charAt(x-1) == '*'){
                    kentta[x][y] = 1;
                    tmpRivi ++;
                }else{
                    kentta[x][y] = 0;
                }
                kenttaSumma[x][y] = tmpRivi + kenttaSumma[x][Math.max(y-1,0)];
            }
            trees += tmpRivi;
        }
 
 
 
        minSize = (int) Math.ceil(Math.pow(treeWanted,0.5));
 
        //optimized test area
        double density = (double) trees/ (double) (width*height);
        int optimizeW = Math.max((int) Math.ceil(Math.pow((treeWanted / density), 0.5)), 2);
 
        int foundArea = 0;
 
        int direction =0;
 
        //-1, koska oikea reuna turha kayda
        for(int y=1; y<=height-(minSize-1); y++){
            for (int x=1; x<=width-(minSize-1); x++){
                int testW = optimizeW;
 
                int tmpX = x-1;
                int tmpY = y-1;
 
                testW = Math.min(Math.min(testW, height-tmpY), width-tmpX);
                int amount = kenttaSumma[tmpX+testW][tmpY+testW]+kenttaSumma[tmpX][tmpY]-kenttaSumma[tmpX][tmpY+testW]-kenttaSumma[tmpX+testW][tmpY];
 
                //haluttu maara
                if (amount == treeWanted){
                    foundArea ++;
                    foundArea += IncreaseArea(testW, x, y);
                    foundArea += DecreaseArea(testW, x, y);
                } else if (amount < treeWanted){
                    foundArea += IncreaseArea(testW, x, y);
                } else { //amount > treeWanted
                    foundArea += DecreaseArea(testW, x, y);
                }
 
            }
        }
 
        io.println(foundArea);
        io.close();
 
    }
 
    private static int CountTree2(int testW, int x, int y){
        testW --; //jos pituus 2, talloin sivu (2-1) pidempi
        return kenttaSumma[x+testW][y+testW] + kenttaSumma[x-1][y-1]-kenttaSumma[x-1][y+testW]- kenttaSumma[x+testW][y-1];
    }
 
 
    private static int DecreaseArea(int testW, int x, int y){
        int foundArea = 0;
        testW --;
        while(testW >= minSize){
            int tmpX = x-1;
            int tmpY = y-1;
            int squareTreeAmount = kenttaSumma[x+testW][tmpY+testW]+kenttaSumma[tmpX][tmpY]-kenttaSumma[tmpX][tmpY+testW]-kenttaSumma[tmpX+testW][tmpY];
            if(squareTreeAmount == treeWanted){
                foundArea ++;
            }
            testW --;
        }
        return foundArea;
    }
 
    private static int IncreaseArea(int testW, int x, int y){
        int foundArea = 0;
        testW ++;
        while(testW + y <= height+1 && testW + x <= width+1){
            int tmpX = x-1;
            int tmpY = y-1;
            int squareTreeAmount = kenttaSumma[x+testW][tmpY+testW]+kenttaSumma[tmpX][tmpY]-kenttaSumma[tmpX][tmpY+testW]-kenttaSumma[tmpX+testW][tmpY];
            if(squareTreeAmount == treeWanted){
                foundArea ++;
            }
            testW ++;
        }
        return foundArea;
    }
 
 
}

Test details

Test 1

Group: 1

Verdict:

input
10 10 1
......*...
.......*..
*..*....*.
*....*....
...
view save

correct output
94
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 11
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 2

Group: 1

Verdict: ACCEPTED

input
10 10 5
**********
**********
**********
**********
...
view save

correct output
0
view save

user output
0
view save

Test 3

Group: 1

Verdict:

input
10 10 10
**...*...*
*..*.**.*.
...**.*..*
*...**.*..
...
view save

correct output
4
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 11
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 4

Group: 1

Verdict:

input
10 10 5
****......
*.*.**..**
....*.*..*
...*.***..
...
view save

correct output
16
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 11
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 5

Group: 1

Verdict:

input
10 10 2
**.***..*.
...*.*....
.***.*...*
***.***..*
...
view save

correct output
30
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 11
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 6

Group: 2

Verdict:

input
500 500 1
.................................
view save

correct output
9552040
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 501
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 7

Group: 2

Verdict:

input
500 500 5
.................................
view save

correct output
1536063
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 501
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 8

Group: 2

Verdict:

input
500 500 25000
**...*...**..*.*..*.**.*..*.*....
view save

correct output
288
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 501
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 9

Group: 2

Verdict:

input
500 500 12500
**.**.*..*...*.**...*.***........
view save

correct output
786
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 501
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 10

Group: 2

Verdict:

input
500 500 5000
.*.*.**..*.*.**.**..*..**...*....
view save

correct output
1763
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 501
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 11

Group: 3

Verdict:

input
2000 2000 1
.................................
view save

correct output
489611392
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2001
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 12

Group: 3

Verdict:

input
2000 2000 5
.................................
view save

correct output
120725884
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2001
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:68)

Test 13

Group: 3

Verdict:

input
2000 2000 400000
..*..**.**.**.*.***...**.*..**...
view save

correct output
1849
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2001
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 14

Group: 3

Verdict:

input
2000 2000 200000
***.*....*.*..*....**..*..*.*....
view save

correct output
2665
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2001
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Test 15

Group: 3

Verdict:

input
2000 2000 80000
**.**...*.***.**....**.*....*....
view save

correct output
5587
view save

user output
(empty)

Error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2001
	at Tontti.IncreaseArea(Tontti.java:111)
	at Tontti.main(Tontti.java:71)

Tasks

A Osajono-B Kirjat-C Tontti-D Lennot-E Bittipeli-

Submissions (testUser)

2015-10-11 09:52:57 1002015-10-11 00:22:58 142015-10-10 23:54:21 142015-10-10 23:11:51 142015-10-10 23:11:20 02015-10-10 23:10:52 142015-10-10 23:10:31 142015-10-10 23:10:05 142015-10-10 23:09:23 472015-10-10 23:08:59 472015-10-10 23:08:39 472015-10-10 23:08:11 472015-10-10 23:07:47 472015-10-10 23:03:49 02015-10-10 22:24:24 02015-10-10 22:10:04 02015-10-10 21:54:49 02015-10-10 21:52:23 02015-10-10 21:38:36 02015-10-10 19:55:38 02015-10-10 19:52:07 02015-10-10 19:51:33 02015-10-10 19:51:01 02015-10-10 19:50:35 02015-10-10 19:48:30 02015-10-10 19:43:04 02015-10-10 19:42:41 02015-10-10 19:42:21 02015-10-10 19:41:59 02015-10-10 19:41:37 02015-10-10 19:40:11 142015-10-10 19:39:41 02015-10-10 19:38:31 02015-10-10 19:36:44 02015-10-10 19:32:35 472015-10-10 19:32:12 472015-10-10 19:31:48 472015-10-10 19:31:25 472015-10-10 19:30:50 472015-10-10 19:29:41 472015-10-10 18:16:20 472015-10-10 18:14:02 472015-10-10 14:49:02 472015-10-10 14:30:19 02015-10-10 13:56:31 472015-10-10 13:55:40 02015-10-10 13:54:22 02015-10-10 12:22:12 472015-10-10 12:21:12 472015-10-10 12:20:29 472015-10-10 11:54:46 472015-10-10 11:29:45 332015-10-10 11:29:29 2015-10-09 09:21:44 472015-10-09 09:20:31 02015-10-09 08:59:00 472015-10-07 15:00:01 142015-10-07 14:49:06 142015-10-07 14:28:02 02015-10-07 14:25:24 02015-10-07 14:15:57 02015-10-07 14:15:16