PALIN - The Next Palindrome
A positive integer is called a palindrome if its representation in the decimal system is the same when read from left to right and from right to left. For a given positive integer K of not more than 1000000 digits, write the value of the smallest palindrome larger than K to output. Numbers are always displayed without leading zeros.
Input
The first line contains integer t, the number of test cases. Integers K are given in the next t lines.
Output
For each K, output the smallest palindrome larger than K.
Example
Input: 2 808 2133 Output: 818 2222
Warning: large Input/Output data, be careful with certain languages
hide comments
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Mitch Schwartz:
2014-06-26 21:40:34
@ankush: There is no such feature. (This is mentioned at http://www.spoj.com/tutorials/USERS/#submit -- "Input and output data used by SPOJ judge to decide whether your solution is correct or not are set by problem-setter (person who adds problems) and are hidden. Many of problems has tricky test data so the ability to form you own and comprehensive test cases is very useful.") |
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ankush:
2014-06-26 20:56:46
How can I have the test cases which were given to my program during submission and validation ? |
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Mitch Schwartz:
2014-06-26 20:40:48
@Asheesh: Complaining angrily about not knowing how things work on the first day of joining a site isn't what I would call interesting. (1) Python is a slower language. There are several Python3 solvers for this problem, but you may need to pay more attention to optimisation concerns compared with other languages; (2) NZEC in Java should mean an exception was thrown -- an error that could be prevented by careful programming; (3) compilation errors are the easiest for users to diagnose; you can click on "compilation error" and read the error yourself. You can also see the name of the compiler when you submit. It should be no surprise that some compilers behave differently from others. |
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Asheesh Pathak:
2014-06-26 20:20:35
This is bullshit. Got time limit exceeded in Python 3, run time error in JAVA 6 and f**king compilation error in C++ 4.3.2 even though they all work fine in my system, and the interesting thing is that I joined SPOJ only today. |
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Sethu Iyer:
2014-06-21 12:18:31
Very good problem , spent 7 hrs in this problem for AC in 1 go and i got it. simply worth it |
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Jens Stimpfle:
2014-06-18 22:58:07
Warning: DOS Line endings (\r\n) |
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chin:
2014-06-08 05:38:53
after long trial ...finally AC!!!!..:D
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Mitch Schwartz:
2014-06-02 10:23:56
@Łukasz Kuszner: Thank you! |
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kuszi:
2014-06-02 08:42:37
@Mitch Schwartz && cegprakash: after the long rejudge it appeared that about 30% of previously accepted solutions was incorrect. Thank you very much! Last edit: 2014-06-02 08:43:36 |
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Dmitri:
2014-05-13 15:09:33
Was worried if my program would take 1 000 000 chars string with Console.ReadLine() in C#. But got solution accepted at the first attempt :) |
| Added by: | adrian |
| Date: | 2004-05-01 |
| Time limit: | 2s-9s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: NODEJS PERL6 |
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