Leetcode Problem 355. Design Twitter
Leetcode Solutions
Using HashMap and PriorityQueue
- Initialize a HashMap to store user's tweets and another to store the users they follow.
- For
postTweet, add the tweet with a timestamp to the user's tweet list in the HashMap. - For
getNewsFeed, use a PriorityQueue to fetch the 10 most recent tweets from the user and the users they follow. - For
follow, add the followee to the follower's set in the followings HashMap. - For
unfollow, remove the followee from the follower's set in the followings HashMap.
Using HashMaps and Lists
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