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LeetCode #212: Word Search II

https://leetcode.com/problems/word-search-ii/ The problem asks us to find all the words from a given list that can be constructed from the…

LeetCode #211: Design Add and Search Words Data Structure

https://leetcode.com/problems/design-add-and-search-words-data-structure/ The “Design Add and Search Words Data Structure” problem on LeetCode asks us to implement a data structure that…

LeetCode #208: Implement Trie (Prefix Tree)

https://leetcode.com/problems/implement-trie-prefix-tree/ The problem requires implementing a Trie data structure, also known as a Prefix Tree, which allows for efficient insertion,…

LeetCode #297: Serialize and Deserialize Binary Tree

https://leetcode.com/problems/serialize-and-deserialize-binary-tree/ The problem requires serializing and deserializing a binary tree. Serialization is the process of converting a data structure into…

LeetCode #124: Binary Tree Maximum Path Sum

https://leetcode.com/problems/binary-tree-maximum-path-sum/description/ Given a binary tree, the problem requires finding the maximum path sum. A path is a sequence of nodes…

LeetCode #105: Construct Binary Tree from Preorder and Inorder Traversal

https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/description/ Given the preorder and inorder traversal of a binary tree, the goal is to construct the binary tree. Algorithm:…

LeetCode #230: Kth Smallest Element in a BST

https://leetcode.com/problems/kth-smallest-element-in-a-bst/description/ Given a binary search tree, the goal is to find the kth smallest element in the tree. Algorithm: Python…

LeetCode #98: Validate Binary Search Tree

https://leetcode.com/problems/validate-binary-search-tree/description/ Given a binary tree, the goal is to determine if it is a valid binary search tree (BST). A…