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Solution: Palindromic Substrings

Explore how to count palindromic substrings within a string by applying dynamic programming. Learn to build and use a lookup table to avoid redundant checks, optimize time complexity to O(n²), and handle implementation details effectively in C++. This lesson helps you understand the transition from naive to optimized approaches for string pattern problems.

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 ...