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Description
A palindrome is a sequence of characters which reads the same backwards and forwards. Given the string s, complete a solution function that returns the length of the longest palindrome within the substrings of s
.
For example, when string s
is "abcdcba", return 7.
Constraints
- Length of string
s
: a natural number less than or equal to 2,500 - The string
s
consists only of lowercase alphabetic characters
Example
s | answer |
---|---|
"abcdcba" | 7 |
"abacde" | 3 |
Example #1
Returns 7 because the whole string s is palindrome based on the fourth digit "d".
Example #2
Returns 3 because "aba" is the palindrome based on the second digit "b".
Result
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