Leetcode Problem 929. Unique Email Addresses
Leetcode Solutions
Using String Split and Replace Methods
- Initialize an empty hash set to store unique cleaned emails.
- Iterate over each email in the input list.
a. Split the email into local name and domain name using the '@' character.
b. Split the local name at the first '+' character and take the first part.
c. Remove all periods from the local name using the
replacemethod. d. Concatenate the cleaned local name with the domain name. e. Insert the cleaned email into the hash set. - Return the size of the hash set, which represents the number of unique email addresses.
Linear Iteration and Character Processing
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