CSES - Datatähti 2024 loppu

CSES - Datatähti 2024 loppu - Results

Submission details
Task:	Sukat
Sender:	EmuBird
Submission time:	2024-01-20 15:55:45 +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	0.08 s	1, 2, 3	details
#2	ACCEPTED	0.08 s	1, 2, 3	details
#3	RUNTIME ERROR	0.08 s	1, 2, 3	details
#4	RUNTIME ERROR	0.08 s	1, 2, 3	details
#5	RUNTIME ERROR	0.08 s	1, 2, 3	details
#6	RUNTIME ERROR	0.08 s	1, 2, 3	details
#7	RUNTIME ERROR	0.08 s	1, 2, 3	details
#8	RUNTIME ERROR	0.08 s	2, 3	details
#9	ACCEPTED	0.08 s	2, 3	details
#10	RUNTIME ERROR	0.08 s	2, 3	details
#11	RUNTIME ERROR	0.08 s	2, 3	details
#12	RUNTIME ERROR	0.08 s	2, 3	details
#13	RUNTIME ERROR	0.08 s	2, 3	details
#14	RUNTIME ERROR	0.08 s	2, 3	details
#15	RUNTIME ERROR	0.23 s	3	details
#16	ACCEPTED	0.21 s	3	details
#17	RUNTIME ERROR	0.22 s	3	details
#18	RUNTIME ERROR	0.22 s	3	details
#19	RUNTIME ERROR	0.22 s	3	details
#20	RUNTIME ERROR	0.21 s	3	details
#21	WRONG ANSWER	0.20 s	3	details

Code

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;

public class Main {
    public static class Pair {
        public char a;
        public char b;
        public Pair(char a, char b) {
            this.a = a;
            this.b = b;
        }
    }
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String input = reader.readLine();
        int sum = 0;
        HashMap<Character, Integer> map = new HashMap<Character, Integer>();
        
        for (char c : input.toCharArray()) {
            int count = map.getOrDefault(c, 0) + 1;
            sum += count;
            map.put(c, count);
        }

        ArrayList<Pair> pairs = new ArrayList<Pair>();

        List<Character> sortedKeys = Arrays.asList(map.keySet().toArray(new Character[0]));
        sortedKeys.sort((a, b) -> map.get(b) - map.get(a));

        for (char c : sortedKeys) {
            int selfCount = map.get(c);
            while (selfCount < sum) {
                char other = 'Ö'; // Ö=null
                for (char otherCandidate : sortedKeys) {
                    if (otherCandidate == c) continue;
                    else {
                        other = otherCandidate;
                        break;
                    }
                }
                
                if (other == 'Ö') break;

                pairs.add(new Pair(c, other));

                selfCount--;
                int otherCount = map.get(other) - 1;
                sum -= 2;

                if (otherCount > 0) {
                    map.put(other, otherCount);
                } else {
                    map.remove(other);
                    sortedKeys.remove(other);
                }

                if (selfCount > 0) {
                    map.put(c, selfCount);
                } else {
                    map.remove(c);
                    sortedKeys.remove(c);
                    break;
                }
            }
        }

        // Try to resque the lonely
        assert map.size() < 2;
        if (map.size() > 0) {
            char lastChar = sortedKeys.get(0);
            int count = map.get(lastChar);

            if (count > 1) {
                for (int i = 0; i < pairs.size(); i++) {
                    Pair p = pairs.get(i);

                    if (p.a == lastChar || p.b == lastChar) continue;
                    pairs.set(i, new Pair(lastChar, p.a));
                    pairs.add(i + 1, new Pair(lastChar, p.b));
                    
                    count -= 2;
                    if (count <= 1) break;
                }
            }
        }
        
        
        System.out.println(pairs.size());
        for (int i = 0; i < pairs.size(); i++) {
            Pair pair = pairs.get(i);
            System.out.println(Character.toString(pair.a) + Character.toString(pair.b));
        }
    }
}

Test details

Test 1

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`QBAXGXJZJS` view save

correct output
`5 XJ ZX SQ JG ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`SSSSSSSSSS` view save

correct output
`0` view save

user output
`0` view save

Test 3

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`SETTSESEEE` view save

correct output
`5 ES ET ES ET ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 4

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`SSMRSSSSKR` view save

correct output
`4 SR SR SM SK` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 5

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`BIIILIIRRL` view save

correct output
`5 IR IL IR IL ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 6

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`YYGEYTDSTY` view save

correct output
`5 YT YT YS YG ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 7

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`MMMMMMMMMN` view save

correct output
`1 MN` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 8

Group: 2, 3

Verdict: RUNTIME ERROR

input
`XQQZJQDDJOWXDFVQUIODDJIZIQDQIW...` view save

correct output
`500 DQ DQ DQ DQ ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
`IIIIIIIIIIIIIIIIIIIIIIIIIIIIII...` view save

correct output
`0` view save

user output
`0` view save

Test 10

Group: 2, 3

Verdict: RUNTIME ERROR

input
`KEOHHYHHAIHLLHEKIHKAHHHHOHEHHE...` view save

correct output
`493 HA HA HA HA ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 11

Group: 2, 3

Verdict: RUNTIME ERROR

input
`WNNFXQNODQFSQVQQPNLQNQNNVVNXHN...` view save

correct output
`499 NQ NQ NQ NQ ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 12

Group: 2, 3

Verdict: RUNTIME ERROR

input
`VGAHMMMXMMVXAAMMMOMMMXVMMMYMXT...` view save

correct output
`500 MH MH MH MH ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 13

Group: 2, 3

Verdict: RUNTIME ERROR

input
`KKKKUUAKKAUKKKKFKKSVKCWKKKCVOJ...` view save

correct output
`500 KI KI KI KI ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 14

Group: 2, 3

Verdict: RUNTIME ERROR

input
`VVVVVVVVVVVVVVVVVVVVVVVVVVVVVV...` view save

correct output
`100 VP VP VP VP ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 15

Group: 3

Verdict: RUNTIME ERROR

input
`FKKJJBWTSFCDEKFPOKIPWZSVKHACMC...` view save

correct output
`100000 CK CK CK CK ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 16

Group: 3

Verdict: ACCEPTED

input
`RRRRRRRRRRRRRRRRRRRRRRRRRRRRRR...` view save

correct output
`0` view save

user output
`0` view save

Test 17

Group: 3

Verdict: RUNTIME ERROR

input
`WVKKVVADNVCVKLVYVVZVKVCTNKVLVV...` view save

correct output
`99925 VC VC VC VC ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 18

Group: 3

Verdict: RUNTIME ERROR

input
`BBBBBDNXDZQXBBYBBWBSBTMADXBBVZ...` view save

correct output
`99999 BE BE BE BE ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 19

Group: 3

Verdict: RUNTIME ERROR

input
`FBRDPLUMLZMLLLUFUCLEMCMULLZLFL...` view save

correct output
`100000 LU LU LU LU ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 20

Group: 3

Verdict: RUNTIME ERROR

input
`UUBUBUTUJSLUVBUXTUUMUXUXTMXUXS...` view save

correct output
`100000 UX UX UX UX ...` view save

user output
(empty)

Error:

Exception in thread "main" java.lang.UnsupportedOperationException
	at java.base/java.util...

Test 21

Group: 3

Verdict: WRONG ANSWER

input
`PPPPPPPPPPEPPPPPPPPPPBOPPPPPPP...` view save

correct output
`20000 PB PB PB PB ...` view save

user output
`0` view save

Datatähti 2024 loppu

Sukat

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

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Tasks

Submissions (EmuBird)