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  2. Longest palindromic substring - Wikipedia

    en.wikipedia.org/wiki/Longest_palindromic_substring

    In computer science, the longest palindromic substring or longest symmetric factor problem is the problem of finding a maximum-length contiguous substring of a given string that is also a palindrome. For example, the longest palindromic substring of "bananas" is "anana".

  3. Palindrome tree - Wikipedia

    en.wikipedia.org/wiki/Palindrome_Tree

    In computer science a palindrome tree, also called an EerTree, [1] is a type of search tree, that allows for fast access to all palindromes contained in a string.They can be used to solve the longest palindromic substring, the k-factorization problem [2] (can a given string be divided into exactly k palindromes), palindromic length of a string [3] (what is the minimum number of palindromes ...

  4. Longest common substring - Wikipedia

    en.wikipedia.org/wiki/Longest_common_substring

    The variable z is used to hold the length of the longest common substring found so far. The set ret is used to hold the set of strings which are of length z. The set ret can be saved efficiently by just storing the index i, which is the last character of the longest common substring (of size z) instead of S[(i-z+1)..i].

  5. Suffix tree - Wikipedia

    en.wikipedia.org/wiki/Suffix_tree

    Finding the longest repeated substring; Finding the longest common substring; Finding the longest palindrome in a string; Suffix trees are often used in bioinformatics applications, searching for patterns in DNA or protein sequences (which can be viewed as long strings of characters). The ability to search efficiently with mismatches might be ...

  6. Palindrome - Wikipedia

    en.wikipedia.org/wiki/Palindrome

    It is possible to find the longest palindromic substring of a given input string in linear time. [55] [56] The palindromic density of an infinite word w over an alphabet A is defined to be zero if only finitely many prefixes are palindromes; otherwise, letting the palindromic prefixes be of lengths n k for k=1,2,... we define the density to be

  7. Category:Problems on strings - Wikipedia

    en.wikipedia.org/wiki/Category:Problems_on_strings

    Longest palindromic substring; Longest repeated substring problem; S. Separating words problem; Shortest common supersequence; String-to-string correction problem

  8. Category:Palindromes - Wikipedia

    en.wikipedia.org/wiki/Category:Palindromes

    This category is for articles about palindromes and not articles with palindromic names. ... Longest palindromic substring; N. Nipson anomēmata mē monan opsin; O.

  9. Substring - Wikipedia

    en.wikipedia.org/wiki/Substring

    If is a substring of , it is also a subsequence, which is a more general concept. The occurrences of a given pattern in a given string can be found with a string searching algorithm. Finding the longest string which is equal to a substring of two or more strings is known as the longest common substring problem.