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Stream of Characters

Explore how to build a custom data structure that processes a streaming sequence of characters and identifies if any suffix matches words from a predefined list. This lesson helps you implement and query a class that efficiently tracks suffixes in real-time, improving your ability to solve pattern matching problems common in coding interviews.

Statement

Design a data structure that processes a stream of characters and, after each character is received, determines if a suffix of these characters is a string in a given array of strings words.

For example, if words = ["dog"] and the stream adds the characters ‘d’, ‘c’, ‘a’\text{`d', `c', `a'}, and ‘t’\text{`t'} ...