LeetCode Day 4 – Word Pattern (Python Solution Explained)
Автор: CloudLaab
Загружено: 2025-11-14
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In Day 4 of the LeetCode Challenge, we solve LeetCode 290: Word Pattern using Python. This video (or article) explains how to check if a given pattern string and a sentence s follow a bijection — meaning each character in pattern maps to exactly one word in s, and vice versa. We’ll break down the logic using two hash maps, handle edge cases, and walk through the full Python implementation. Great for coding interview prep and fundamental string-pattern problems.
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