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.


The first line contains integer t, the number of test cases. Integers K are given in the next t lines.


For each K, output the smallest palindrome larger than K.




Warning: large Input/Output data, be careful with certain languages

hide comments
Bumbler: 2014-01-15 15:17:31

Awesome problem !!

Junior Prog: 2014-01-15 15:17:31

How to handle large numbers like 100000 digit numbers used here??

reply: string

Last edit: 2013-01-10 19:04:01
Junior Prog: 2014-01-15 15:17:31

Hey can anyone tell me how to work with 100000 digits? I have never come across such a huge number before!

abdelkarim: 2014-01-15 15:17:31

@problem setter :
please hide "Vijay Dhameliya" comment .

reply: comment deleted

Last edit: 2013-01-10 19:05:58
DEVANSH PARASHAR: 2014-01-15 15:17:31

omg i forgot to notice its 1000000 digits not 1000000 fish

Bharath Chandrasekar: 2014-01-15 15:17:31 it after 7 WA...never underestimate a problem!

Last edit: 2012-12-09 05:45:18
Trần Mạnh Quân: 2014-01-15 15:17:31

It's really hard to have AC in ACM :(

Jegan: 2014-01-15 15:17:31

it's great...

Last edit: 2012-08-03 16:28:32
garretthh07: 2014-01-15 15:17:31

oh!!I think my methods is ok,but it gets wrong!!

Udaybhanu Sanyal: 2014-01-15 15:17:31

god knows y my code not working...working fyn in my pc tho...

Added by:adrian
Time limit:2s-9s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS PERL6

Problem's scores 1 vote

Concept difficulty
Concept difficulty 37%
Implementation difficulty
Implementation difficulty 50%
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