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Depth-First-Search

Unique Length-3 Palindromic Subsequences

April 24, 2022 · 6 min · array · binary-search · binary-tree · bit-manipulation · database · depth-first-search · dynamic-programming · greedy · hash-table · leetcode · prefix-sum · string · tree · video · Last updated: Aug 2, 2025

Find if Path Exists in Graph

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 · Last updated: Aug 2, 2025

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 · Last updated: Aug 2, 2025

Longest Absolute File Path

April 5, 2022 · 5 min · daily-coding-problem · depth-first-search · leetcode · map · stack · string · Last updated: Aug 2, 2025

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