Solution: Word Pattern
Understand how to determine if a string of words follows a given pattern by applying hash maps to ensure a one-to-one correspondence between pattern characters and words. Learn step-by-step how to check mapping consistency and efficiently solve this common coding interview problem with a linear time solution.
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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...