Section 1Understand Problem
Section 01
Understand the problem
Restate the problem precisely. Interviewers reward candidates who pause, define the contract, and name the guarantees before coding.
Problem statement
Given a `pattern` and a string `s`, find if `s` follows the same pattern. Here *follow* means a full match, such that there is a bijection between a letter in `pattern` and a non-empty word in `s`.
Example
pattern = "abba", s = "dog cat cat dog" → true
Constraints
1 ≤ pattern.length ≤ 300 · lowercase English letters · 1 ≤ s.length ≤ 3000
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