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Datatähti 2016 alku

Start:2015-09-28 00:00:00
End:2015-10-12 00:00:00
 

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CSES - Datatähti 2016 alku - Results
History
2015-10-10 23:10:410
2015-10-10 23:08:160
2015-10-04 13:58:2247
2015-09-28 20:53:3414
Task:Tontti
Sender:@.+-_
Submission time:2015-10-04 13:58:22
Language:Java
Status:READY
Score:47

Feedback

groupverdictscore
#1ACCEPTED14
#2ACCEPTED33
#3TIME LIMIT EXCEEDED0

Test results

testverdicttime (s)group
#1ACCEPTED0.18 / 1.001details
#2ACCEPTED0.17 / 1.001details
#3ACCEPTED0.18 / 1.001details
#4ACCEPTED0.20 / 1.001details
#5ACCEPTED0.17 / 1.001details
#6ACCEPTED0.54 / 1.002details
#7ACCEPTED0.54 / 1.002details
#8ACCEPTED0.29 / 1.002details
#9ACCEPTED0.37 / 1.002details
#10ACCEPTED0.32 / 1.002details
#11TIME LIMIT EXCEEDED-- / 1.003details
#12TIME LIMIT EXCEEDED-- / 1.003details
#13TIME LIMIT EXCEEDED-- / 1.003details
#14TIME LIMIT EXCEEDED-- / 1.003details
#15TIME LIMIT EXCEEDED-- / 1.003details

Code

public class Tonts2 {
	static int width, height, treesWanted;
	static char[][] chr;
	
	static int[][] arr;
	
	public static void main(String[] args) {
		IO oi = new IO();
		
		height = oi.nextInt();
		width = oi.nextInt();
		treesWanted = oi.nextInt();
		
		chr = new char[height][];
		arr = new int[height][];
		
		for(int i = 0; i < height; i++) {
			chr[i] = oi.next().toCharArray();
			arr[i] = new int[width];
		}
		
		int minScope = (int) Math.ceil(Math.sqrt(treesWanted)),
				maxScope = height < width ? height : width;
		
		for(int y = 0; y < height; y++) {
			arr[y][0] = chr[y][0] == '*' ? 1 : 0;
			
			for(int x = 1; x < width; x++)
				arr[y][x] = arr[y][x-1] + (chr[y][x] == '*' ? 1 : 0);
			
			for(int x = 0; x < width; x++)
				if(y > 0) arr[y][x] += arr[y-1][x];
		}
		
		int valA, val1, val2, val3;
		int result = 0;
		
		for(int scope = minScope; scope <= maxScope; scope++) {
			for(int y = 0; y <= height - scope; y++) {
				for(int x = 0; x <= width - scope; x++) {
					valA = arr[y+scope-1][x+scope-1];
					val1 = x > 0 && y > 0 ? arr[y-1][x-1] : 0;
					val2 = y > 0 ? arr[y-1][x+scope-1] : 0;
					val3 = x > 0 ? arr[y+scope-1][x-1] : 0;
					
					if(valA - val1 - (val2 - val1) - (val3 - val1) == treesWanted)
						result++;
				}
			}
		}
		
		oi.println(result);
		oi.close();
	}
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

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

correct output
94
view   save

user output
94
view   save

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: ACCEPTED

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

correct output
4
view   save

user output
4
view   save

Test 4

Group: 1

Verdict: ACCEPTED

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

correct output
16
view   save

user output
16
view   save

Test 5

Group: 1

Verdict: ACCEPTED

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

correct output
30
view   save

user output
30
view   save

Test 6

Group: 2

Verdict: ACCEPTED

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

correct output
9552040
view   save

user output
9552040
view   save

Test 7

Group: 2

Verdict: ACCEPTED

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

correct output
1536063
view   save

user output
1536063
view   save

Test 8

Group: 2

Verdict: ACCEPTED

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

correct output
288
view   save

user output
288
view   save

Test 9

Group: 2

Verdict: ACCEPTED

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

correct output
786
view   save

user output
786
view   save

Test 10

Group: 2

Verdict: ACCEPTED

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

correct output
1763
view   save

user output
1763
view   save

Test 11

Group: 3

Verdict: TIME LIMIT EXCEEDED

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

correct output
489611392
view   save

user output
(no output)
view   save

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

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

correct output
120725884
view   save

user output
(no output)
view   save

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

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

correct output
1849
view   save

user output
(no output)
view   save

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED

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

correct output
2665
view   save

user output
(no output)
view   save

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED

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

correct output
5587
view   save

user output
(no output)
view   save