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
So, for words, the goal is to detect if any of these words appear as a suffix of the stream built so far. To accomplish this, implement a class StreamChecker:
Constructor: Initializes the object with the list of target words.
boolean query(char letter): Appends a character to the stream and returns TRUE if any suffix of the stream matches a word in the list words.
Constraints:
words.length
words[i].length
words[i] consists of lowercase English letters.
letter is a lowercase English letter.
At most
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
So, for words, the goal is to detect if any of these words appear as a suffix of the stream built so far. To accomplish this, implement a class StreamChecker:
Constructor: Initializes the object with the list of target words.
boolean query(char letter): Appends a character to the stream and returns TRUE if any suffix of the stream matches a word in the list words.
Constraints:
words.length
words[i].length
words[i] consists of lowercase English letters.
letter is a lowercase English letter.
At most