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Unique Length-3 Palindromic Subsequences

April 24, 2022 · 5 min · array · binary-search · binary-tree · bit-manipulation · database · depth-first-search · dynamic-programming · greedy · hash-table · leetcode · prefix-sum · string · tree

Find if Path Exists in Graph Problem

April 16, 2022 · 4 min · bfs · binary-tree · breadth-first-search · database · depth-first-search · dfs · disjoint-set · graph · greedy · leetcode · string · tree · union-find · video

Convert BST to Greater Sum Tree

April 16, 2022 · 3 min · binary-search-tree · binary-tree · bst-binary-search-tree · convert · depth-first-search · leetcode · traversal/inorder · traversal/morris · traversal/reverse-inorder · tree · video

Count number of bits to be flipped to convert A to B

April 3, 2022 · 2 min · array · binary-search · binary-tree · bit-manipulation · bits · combinatorics · count · counting · ctci · database · design · dynamic-programming · enumeration · graph · greedy · hash-function · hash-table · heap-priority-queue · leetcode · math · prefix-sum · rolling-hash · simulation · sorting · string · string-matching · suffix-array · tree · trie · two-pointers · xor · todo

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