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Solution: Word Pattern

Understand how to verify if a string of words follows the same pattern as a sequence of characters by using hash maps to ensure a one-to-one mapping between each pattern character and word. This lesson guides you through implementing an efficient solution that checks pattern matching with linear time and space complexity.

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 pattern must map to exactly one unique word in s.

  • Each word in s must map to exactly one unique character in pattern.

  • No ...