LeetCode 647 Palindromic Substrings - Three Solution from O(n³) to O(n) - (Med, Java)

Jul 8, 2025 · 6 min read · 647. Palindromic Substrings When tackling LeetCode 647 (Palindromic Substrings), there are multiple ways to solve the problem. Today, I'll walk through three distinct approaches: the Brute Force method, the Expand Around Centers technique, and the a...