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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
| 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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2014-01-15 15:17:31 cegprakash
Martijn Muijsers: true that 2 9994 99994 should produce 9999 99999 But my ACC code produces 10001 100001 Jatin Singla also specified that he got ACC when his code produced 1111 for 1991 where it should produce 2002. Sachin Sai Krishna's code produces 9 for 9 and got ACC. Test cases are weak. It's been 9 years. But it's okay to rejudge after making the test cases strong. |
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2014-01-15 15:17:31 Aravind Sagar
@shweta choudhary The problem is that the input number can have 1000000 digits, so int and long long won't work. Try to store it as a string and think of a different approach. |
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2014-01-15 15:17:31 aqua
checked all cases still getting WA ...can anyone help? i am coding in C... http://ideone.com/G3Ept4 even getting correct output here Last edit: 2013-12-18 21:07:23 |
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2014-01-15 15:17:31 amin ababneh
omg!!!! same code i wrote in java and c++ java gave me tle then rte . c++ worked just fine is that possible or i did something wrong while transforming the code from one lang to another ? |
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2014-01-15 15:17:31 Martijn Muijsers
Great problem, but some wrong answers appear to be accepted? :P |
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2014-01-15 15:17:31 Shashank Gupta
Good problem. Just be very careful with what functions/operations you use in your language. Even in slower languages, this problem is easy to do with the high time limit. |
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2014-01-15 15:17:31 Sachin Sai Krishna M
for 9 the ans should be 11 but if even 9 gets printed u can get AC:) pls check that one |
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2014-01-15 15:17:31 Gaurav Mishra
To much hard coding :( |
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2014-01-15 15:17:31 ISHANI
GREEN LINE after hard hard coding but really VERY VERY NICE LOGIC |
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2014-01-15 15:17:31 Abhash Singh
3.5 hrs straight into this one! AC in first attempt! no points!what is this! :( |
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