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Solution: Palindromic Substrings

Explore dynamic programming techniques to count all palindromic substrings within a string. Learn to build a lookup table that stores palindrome checks to avoid redundant computations, improving the time complexity from cubic to quadratic. This lesson helps you implement and understand an optimized algorithm for pattern recognition in strings.

Statement

Given a string, s, return the number of palindromic substrings contained in it. A substring is a contiguous sequence of characters in a string. A palindrome is a phrase, word, or sequence that reads the same forward and backward.

Constraints:

  • 11 \leq s.length 1000 ...