Data structures and algorithms
Invert A Binary Tree
Invert A Binary Tree: Given the root of a binary tree, invert the tree, and return its root.
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Data structures and algorithms
Word Search
Word Search: Given an m x n grid of characters board and a string word, return true if word exists in the grid.
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After investing countless hours in courses, books, and guides, as well as honing my skills on LeetCode, we came to the realization that interview preparation can be an incredibly time-consuming process, not to mention the stress of actually passing the interviews.
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