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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w1583236:
2017-11-08 20:51:02
My code exceeded the time limit. Does that imply there would be any redundancy in my code ? |
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gauravsood_:
2017-10-31 14:57:27
use string not integer, refer to geeks for geeks article for next palindrome, don't forget to include case 0000000 and 000000xxxx where xxx can be any number. goodluck :) |
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manjeet_:
2017-10-30 14:22:55
there are no cases like 001 .. so dont worry.. i've submitted without even checking them
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gaurav__404:
2017-10-26 17:18:03
a small mistake can waste your 3 hours ;-| every thing is mentioned in this question and end line is important |
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neildcruze:
2017-10-26 07:29:50
Why is it showing compilation error? When I run the same code on my computer, it works perfectly. |
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marcognox:
2017-10-19 15:41:48
Theoden's test cases are recommended, plus "23726 -> 23732" (this case took me a lot of time to figure out) |
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vivace_jr:
2017-10-07 15:24:44
000 gives 010 as output...huh..this is bad |
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fducck:
2017-10-05 14:15:12
Remember to check 0/000002133000/9/ |
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Nguyễn Hoàng Nam:
2017-10-05 02:36:28
@prashant23: it just means you haven't checked deep enough. There can be really odd numbers which will cause really odd interaction. The example given by @theoden91 is a good one, try that. |
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prashant23:
2017-10-01 20:45:10
I am getting all the cases correct in my system but still getting the wrong answer, anyone has any idea.
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| 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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