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papyrus 192ce44a81 Add notes on palindrome algorithms
Added notes on palindrome algorithms including expand-around-center and Manacher's Algorithm.
2026-01-29 14:19:46 +05:30

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The expand-around-center approach checks every character (and every gap between characters) as a potential palindrome center and expands outward to verify palindromes, resulting in repeated character comparisons and a worst-case time complexity of O(n²).

In contrast, Manachers Algorithm optimizes this process by transforming the string and using palindrome symmetry to reuse previously computed information, thereby eliminating redundant expansions and achieving a linear time complexity of O(n). in the code C -> center of the rightmost palindrome R -> right boundary of rightmost Palindrome