Thank you sharing brief information , this post really include qualitative information. easy break up spells

Is this really finding "Longest Palindromic Sub-sequence" or "Longest Palindromic Sub-string" ? cast a love spell for free

Great Explanation..Further we would expect the same for NP-Completeness problem. It is very hard to understand NPC problems and to solve them spell to stop someone from bothering you

here is hackerrank palindromic subsets solution

why can' t we simply solve it by calculating all sub set and check palindromic behavior for every one. why we need to use segment tree.