NUMOFPAL - Number of Palindromes
Each palindrome can be always created from the other palindromes, if a single character is also a palindrome. For example, the string "malayalam" can be created by some ways:
- malayalam = m + ala + y + ala + m
- malayalam = m + a + l + aya + l + a + m
We want to take the value of function NumPal(s) which is the number of different palindromes that can be created using the string S by the above method. If the same palindrome occurs more than once then all of them should be counted separately.
Input
The string S.
Output
The value of function NumPal(s).
Limitations
0 < |s| ≤ 1000
Example
Input: malayalam Output: 15
hide comments
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hdhphat06dona:
2023-05-26 17:28:52
How does the answer go 15? Cannot imagine. |
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fuadul_hasan:
2022-09-25 23:50:57
finally I have learned palindromic tree and solve this one. it was more fun. :) |
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sirjan13:
2019-10-25 22:17:01
Manacher + Prefix sums :)) |
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rks14:
2019-10-14 12:51:33
Weak test cases. O(n^3) passes. |
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sfialok98:
2017-06-27 13:50:47
Nice problem..
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Gaurav Dahima:
2016-08-31 20:25:28
O(n*n) passes, try MSUBSTR (a bit harder) after this. |
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Piyush Kumar:
2016-07-05 14:22:19
O(n) solution can survive better constraints! :) |
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minhthai:
2016-04-05 16:25:36
if u find it difficult, read the problem again :) |
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[Mayank Pratap]:
2016-03-02 09:24:25
Simple Memoisation :) |
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sandy:
2016-02-26 08:28:58
nice problem to try out palindromic tree :) |
| Added by: | The quick brown fox jumps over the lazy dog |
| Date: | 2010-10-18 |
| Time limit: | 0.100s-1s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: ASM64 |
| Resource: | Udit Agarwal |
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