feat: Add Manacher's Algorithm for finding the longest palindromic substring #587
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Description
This PR adds Manacher's Algorithm to the
pydatastructs.strings.algorithms
module. The algorithm efficiently finds the longest palindromic substring in a given string in O(n) time, wheren
is the length of the string.Changes
manacher
function inpydatastructs.strings.algorithms
.manacher
function intest_algorithms.py
.__all__
list to includemanacher
for public API access.Fixes: #586