Solution: Word Pattern
Understand how to verify if a given string of words matches a character pattern by applying a bijection concept with hash maps. Explore step-by-step how to ensure each pattern character maps uniquely to one word and vice versa. This lesson helps you analyze and implement an efficient O(n) time complexity solution for pattern matching problems commonly tested in coding interviews.
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Statement
You are given a pattern and a string, s. You need to determine whether the string s follows the same pattern.
A string s is said to follow a pattern if a bijection exists between a character in the pattern and a non-empty word in s.
Each character in the
patternmust map to exactly one unique word ins.Each word in
smust map to exactly one unique character inpattern.No ...