Solution: Word Pattern
Understand how to verify if a string follows a given pattern by implementing a one-to-one mapping between pattern characters and words using hash maps. Learn to break down the problem, handle constraints, and ensure consistent mapping through an efficient algorithm suitable for 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 two characters map to the same word, and no two words map to the same character.
Constraints:
pattern.length...