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Datatähti 2026 alku

Palindromi

  • Start: 2025-10-27 00:00:00
  • End: 2025-11-10 00:00:00
Submission details
Task:Palindromi
Sender:j-l
Submission time:2025-11-01 15:49:42 +0200
Language:Node.js
Status:READY
Result:0
Feedback
groupverdictscore
#10
Test results
testverdicttime
#10.11 sdetails
#20.11 sdetails
#30.11 sdetails
#40.12 sdetails
#50.11 sdetails
#60.11 sdetails
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#80.11 sdetails
#90.11 sdetails
#100.11 sdetails

Code

const readline = require('readline');

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

function paladromi(wordOrigin){
    let txtlength = 0;
    let result1 = "";
    let result2 = "";
    while ((wordOrigin.length/2) > txtlength) {
        result1 = result1+wordOrigin.at(txtlength);
        result2 = wordOrigin.at(txtlength)+result2;
        txtlength += 1;
    }
    let final = result1+result2;
    return final;
};

rl.question('What is your name? ', (name) => {
    console.log(paladromi(name));
    rl.close();
});

Test details

Test 1 (public)

Verdict:

input
datatahti
view save

correct output
3
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 2 (public)

Verdict:

input
saippuakauppias
view save

correct output
0
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 3 (public)

Verdict:

input
a
view save

correct output
0
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 4 (public)

Verdict:

input
aa
view save

correct output
0
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 5 (public)

Verdict:

input
abc
view save

correct output
1
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 6 (public)

Verdict:

input
aybabtu
view save

correct output
2
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 7 (public)

Verdict:

input
abacabaca
view save

correct output
2
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 8 (public)

Verdict:

input
bbbbaaaababbbbbaabaaabaaaaabab...
view save

correct output
23
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 9 (public)

Verdict:

input
acbaaabaabaddaccdcccbcdbdddacd...
view save

correct output
38
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Test 10 (public)

Verdict:

input
uaqtmfftecryanvpshxsodjrllqnqp...
view save

correct output
49
view save

user output
What is your name? 
view save

Error:
/box/input/code.js:13
        result1 = result1+wordOrigin.at(txtlength);
                                     ^

TypeError: wordOrigin.at is not a function
    at paladromi (/box/input/code.js:13:38)
    at /box/input/code.js:22:17
    at Interface._onLine (readline.js:327:5)
    at Interface._normalWrite (readline.js:474:12)
    at ReadStream.ondata (readline.js:186:10)
    at ReadStream.emit (events.js:314:20)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:272:9)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at internal/fs/streams.js:215:14

Tasks

A Palindromi-B Monikulmio-C Tulkki-D Maalaus-E Hypyt-F Lukujono-

Submissions (j-l)

2025-11-01 16:54:06 1002025-11-01 16:53:41 02025-11-01 16:51:22 02025-11-01 16:49:50 02025-11-01 16:49:00 02025-11-01 16:47:30 02025-11-01 16:47:00 02025-11-01 16:44:37 02025-11-01 16:43:08 02025-11-01 16:42:26 02025-11-01 16:38:14 02025-11-01 16:34:58 02025-11-01 16:32:50 02025-11-01 16:31:51 02025-11-01 16:31:07 02025-11-01 16:30:25 02025-11-01 16:28:52 02025-11-01 16:28:16 02025-11-01 16:27:09 02025-11-01 16:24:45 02025-11-01 16:22:38 02025-11-01 16:21:37 02025-11-01 16:20:49 02025-11-01 16:19:13 02025-11-01 16:18:01 02025-11-01 16:14:19 02025-11-01 16:13:40 02025-11-01 16:13:01 02025-11-01 16:11:54 02025-11-01 16:09:13 02025-11-01 16:00:19 02025-11-01 15:59:38 02025-11-01 15:57:18 02025-11-01 15:53:19 02025-11-01 15:52:26 02025-11-01 15:52:01 02025-11-01 15:50:40 02025-11-01 15:49:42 02025-11-01 15:47:39 02025-11-01 15:45:13 02025-11-01 15:36:30 02025-11-01 12:31:33 0