Leetcode Problem 648. Replace Words
Leetcode Solutions
Prefix Hashing Approach
- Create a set called
rootsetand add all the roots from the dictionary to it. - Split the sentence into words.
- For each word, iterate through all possible prefixes of the word.
- If a prefix is found in
rootset, replace the entire word with this prefix. - If no prefixes match, keep the word unchanged.
- Join all the words back into a sentence and return it.
Trie-based Approach
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