DIY: Implement Trie
Solve the interview question "Implement Trie" yourself in this lesson.
We'll cover the following
Problem statement
In this challenge, you have to implement the Trie data structure. This is a tree-like data structure used to store strings. The tries are also called prefix trees because they provide very efficient prefix matching operations. Your implementation of the trie should contain insert()
, search()
, and searchPerfix()
functions.
Input
The input for all three of the functions mentioned above will be a string. The following is an example input:
"makeup"
You can assume that all inputs will be lowercase character strings with string length less than 100.
Output
The insert()
function does not return anything. The search()
and searchPrefix()
will return true
if the input was found in the trie. Otherwise, it will return false
. The following is an example output:
true
Coding exercise
Using the skeleton code given below, you need to implement the Trie
class with the Trie()
, insert(string)
, search(string)
, and searchPrefix(string)
functions:
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