Leetcode Problem 819. Most Common Word

819. Most Common Word

Leetcode Solutions

Initialize a hashmap to store word frequencies and a set for banned words.
Convert the banned list into a set for quick lookups.
Initialize variables to keep track of the current word and the most frequent word.
Iterate over each character in the paragraph.
- If the character is a letter, add it to the current word.
- Otherwise, if the current word is not empty and not banned, update its frequency.
- Keep track of the most frequent word encountered so far.
Return the most frequent non-banned word.

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