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Datatähti 2015 loppu

Start:2015-01-29 12:15:00
End:2015-01-29 17:15:00
 

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CSES - Datatähti 2015 loppu - Results
History
2015-01-29 16:35:49100
2015-01-29 16:22:280
2015-01-29 16:13:230
2015-01-29 16:11:280
2015-01-29 16:10:340
2015-01-29 16:09:510
2015-01-29 15:47:4317
2015-01-29 15:37:470
2015-01-29 15:30:0059
2015-01-29 15:23:150
2015-01-29 15:21:0959
2015-01-29 15:18:4559
2015-01-29 15:17:1159
2015-01-29 15:16:030
2015-01-29 15:12:120
2015-01-29 14:46:290
2015-01-29 14:05:590
2015-01-29 14:03:000
2015-01-29 13:20:3417
Task:Ruudukko
Sender:Nameci2718_
Submission time:2015-01-29 16:35:49
Language:Java
Status:READY
Score:100

Feedback

groupverdictscore
#1ACCEPTED17
#2ACCEPTED42
#3ACCEPTED41

Test results

testverdicttime (s)group
#1ACCEPTED0.04 / 3.001details
#2ACCEPTED0.02 / 3.001details
#3ACCEPTED0.02 / 3.001details
#4ACCEPTED0.04 / 3.001details
#5ACCEPTED0.04 / 3.001details
#6ACCEPTED0.06 / 3.002details
#7ACCEPTED0.08 / 3.002details
#8ACCEPTED0.06 / 3.002details
#9ACCEPTED0.07 / 3.002details
#10ACCEPTED0.17 / 3.002details
#11ACCEPTED0.36 / 3.003details
#12ACCEPTED0.31 / 3.003details
#13ACCEPTED0.36 / 3.003details
#14ACCEPTED0.39 / 3.003details
#15ACCEPTED0.31 / 3.003details

Code


public class Main {

	public static void main(String[] args) {
		IO io = new IO();

		int n = io.nextInt();
		
		char[] characters = new char[n * n];
		boolean[] possible = new boolean[n * n];
		possible[0] = true;
		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];
			}
		}
		
		String best = characters[0] + "";
		for (int i = 1; i < 2 * n - 1; i++) {
			int lowest = Integer.MAX_VALUE;
			for (int x = 0; x <= i; x++) {
				if(x >= n || i - x >= n) continue;
				int index = x + (i - x) * n;
				char left = ' ', up = ' ';
				if(x > 0) {
					if(possible[index-1])
					left = characters[index-1];
				}
				if(i - x > 0) {
					if(possible[index-n])
					up = characters[index-n];
				}
				char chr = characters[index];
				if(chr <= lowest && 
						( up == best.charAt(best.length()-1) || left == best.charAt(best.length()-1) ) ) {
					lowest = chr;
					possible[index] = true;
				}
				
			}
			best += (char)lowest;
		}
		
		io.println(best);
		
		io.close();
		
	}

}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
5
AAAAA
AAAAA
AAAAA
AAAAA
...
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correct output
AAAAAAAAB

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user output
AAAAAAAAB

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Test 2

Group: 1

Verdict: ACCEPTED

input
5
ABABA
BABAB
ABABA
BABAB
...
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correct output
ABABABABA

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user output
ABABABABA

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Test 3

Group: 1

Verdict: ACCEPTED

input
5
WRYIU
TWLKH
UJMJC
GRDJW
...
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correct output
WRWJMDJWK

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user output
WRWJMDJWK

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Test 4

Group: 1

Verdict: ACCEPTED

input
5
RUEAE
ZYHHW
KDBPD
DXREW
...
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correct output
RUEAEWDWX

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user output
RUEAEWDWX

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Test 5

Group: 1

Verdict: ACCEPTED

input
5
SRGYR
MYDOB
GNOVM
SZOZK
...
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correct output
SMGNOOLTU

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user output
SMGNOOLTU

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Test 6

Group: 2

Verdict: ACCEPTED

input
100
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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Test 7

Group: 2

Verdict: ACCEPTED

input
100
ABABABABABABABABABABABABABABAB...
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correct output
ABABABABABABABABABABABABABABAB...
view   save

user output
ABABABABABABABABABABABABABABAB...
view   save

Test 8

Group: 2

Verdict: ACCEPTED

input
100
FWOVNYKNMMQCNHJGUYPNEDXGVVGONC...
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correct output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...
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user output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...
view   save

Test 9

Group: 2

Verdict: ACCEPTED

input
100
ETGCJABWKMAAEOQXWFFYMDJBMNKMQK...
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correct output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...
view   save

user output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...
view   save

Test 10

Group: 2

Verdict: ACCEPTED

input
100
GNWMLJNHSBAADUFCSGIZMWHZTVDHNR...
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correct output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...
view   save

user output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...
view   save

Test 11

Group: 3

Verdict: ACCEPTED

input
500
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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Test 12

Group: 3

Verdict: ACCEPTED

input
500
ABABABABABABABABABABABABABABAB...
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correct output
ABABABABABABABABABABABABABABAB...
view   save

user output
ABABABABABABABABABABABABABABAB...
view   save

Test 13

Group: 3

Verdict: ACCEPTED

input
500
HGADXTSFXYIEMDWMFIVQGHTACFUPYI...
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correct output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...
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user output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...
view   save

Test 14

Group: 3

Verdict: ACCEPTED

input
500
SBLNMAZESQVGWAPZYHQJMQTNGMEZWS...
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correct output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...
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user output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...
view   save

Test 15

Group: 3

Verdict: ACCEPTED

input
500
AOXYXRYFWPYWQDPWXQITLHQQUAYZAJ...
view   save

correct output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...
view   save

user output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...
view   save