CSES - Datatähti 2015 loppu

CSES - Datatähti 2015 loppu - Results

Submission details
Task:	Ruudukko
Sender:	Nameci2718_
Submission time:	2015-01-29 15:37:47 +0200
Language:	Java
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	RUNTIME ERROR	0
#2	RUNTIME ERROR	0
#3	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	RUNTIME ERROR	0.04 s	1	details
#2	RUNTIME ERROR	0.06 s	1	details
#3	WRONG ANSWER	0.04 s	1	details
#4	WRONG ANSWER	0.04 s	1	details
#5	ACCEPTED	0.04 s	1	details
#6	RUNTIME ERROR	0.15 s	2	details
#7	RUNTIME ERROR	0.14 s	2	details
#8	RUNTIME ERROR	0.14 s	2	details
#9	RUNTIME ERROR	0.14 s	2	details
#10	RUNTIME ERROR	0.13 s	2	details
#11	RUNTIME ERROR	0.71 s	3	details
#12	RUNTIME ERROR	0.68 s	3	details
#13	RUNTIME ERROR	0.55 s	3	details
#14	RUNTIME ERROR	0.58 s	3	details
#15	RUNTIME ERROR	0.59 s	3	details

Code

public class Main {

	public static void main(String[] args) {
		
		IO io = new IO();
		
		int n = io.nextInt();
		
		String[] characters = new String[n * n];
		
		for (int i = 0; i < n; i++) {
			char[] row = io.next().toCharArray();
			for (int j = 0; j < n; j++) {
				int index = j + i * n;
				characters[index] = row[j]+"";
			}
		}
		
		int xi = 0, yi = 0;
		
		for (int i = 1; i < 2 * n - 1; i++) {
			for (int x = 0; x <= i; x++) {
				int index = x + (i - x) * n;
				if(x >= n || i - x >= n 
						 || x < xi || i - x < yi) continue;
				String up = null, left = null;
				
				if(x != 0) {
					left = characters[index-1];
				}
				if((i - x) != 0) {
					up = characters[index-n];
				}
				String better = better(up, left);
				if(up != left && up != null && left != null) {
					if(up.equals(better)) {
						xi = x;
					} else {
						yi = i - x;
					}
				}
				characters[index] = better.concat(characters[index]);
			}
		}
		
		io.println(characters[n*n-1]);
		
		io.close();
		
	}
	
	public static String better(String up, String left) {
		if(up == null) return left;
		if(left == null) return up;
		if(up.length() < left.length()) return left;
		if(left.length() > up.length()) return up;
		for (int i = 0; i < up.length(); i++) {
			if(up.charAt(i) < left.charAt(i)) {
				return up;
			}
			if(up.charAt(i) > left.charAt(i)) {
				return left;
			}
		}
			
		return up;
	}

}

Test details

Test 1

Group: 1

Verdict: RUNTIME ERROR

input
`5 AAAAA AAAAA AAAAA AAAAA ...` view save

correct output
`AAAAAAAAB` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 2

Group: 1

Verdict: RUNTIME ERROR

input
`5 ABABA BABAB ABABA BABAB ...` view save

correct output
`ABABABABA` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 3

Group: 1

Verdict: WRONG ANSWER

input
`5 WRYIU TWLKH UJMJC GRDJW ...` view save

correct output
`WRWJMDJWK` view save

user output
`FKKYK` view save

Test 4

Group: 1

Verdict: WRONG ANSWER

input
`5 RUEAE ZYHHW KDBPD DXREW ...` view save

correct output
`RUEAEWDWX` view save

user output
`EWX` view save

Test 5

Group: 1

Verdict: ACCEPTED

input
`5 SRGYR MYDOB GNOVM SZOZK ...` view save

correct output
`SMGNOOLTU` view save

user output
`SMGNOOLTU` view save

Test 6

Group: 2

Verdict: RUNTIME ERROR

input
`100 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...` view save

correct output
`AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 7

Group: 2

Verdict: RUNTIME ERROR

input
`100 ABABABABABABABABABABABABABABAB...` view save

correct output
`ABABABABABABABABABABABABABABAB...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 8

Group: 2

Verdict: RUNTIME ERROR

input
`100 FWOVNYKNMMQCNHJGUYPNEDXGVVGONC...` view save

correct output
`FWDBDECKBHKIACOVUCJGDJOHAYIBHO...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 9

Group: 2

Verdict: RUNTIME ERROR

input
`100 ETGCJABWKMAAEOQXWFFYMDJBMNKMQK...` view save

correct output
`EAARGLBRLHCDHHBPABHDAJBEEBHQBE...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 10

Group: 2

Verdict: RUNTIME ERROR

input
`100 GNWMLJNHSBAADUFCSGIZMWHZTVDHNR...` view save

correct output
`GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 11

Group: 3

Verdict: RUNTIME ERROR

input
`500 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...` view save

correct output
`AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 12

Group: 3

Verdict: RUNTIME ERROR

input
`500 ABABABABABABABABABABABABABABAB...` view save

correct output
`ABABABABABABABABABABABABABABAB...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 13

Group: 3

Verdict: RUNTIME ERROR

input
`500 HGADXTSFXYIEMDWMFIVQGHTACFUPYI...` view save

correct output
`HGADEJOGAKPJCRAHTABRSDLAVGBFAG...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 14

Group: 3

Verdict: RUNTIME ERROR

input
`500 SBLNMAZESQVGWAPZYHQJMQTNGMEZWS...` view save

correct output
`SBLCAMDHILGIDRCIDUNMMAHFYCENOS...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Test 15

Group: 3

Verdict: RUNTIME ERROR

input
`500 AOXYXRYFWPYWQDPWXQITLHQQUAYZAJ...` view save

correct output
`AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1
	at java.lang.String.charAt(String.java:646)
	at Main.better(Main.java:59)
	at Main.main(Main.java:35)

Datatähti 2015 loppu

Ruudukko

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Tasks

Submissions (Nameci2718_)