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Design Twitter Visualizer & Solution | Rulcode

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151. Design Twitter

Medium

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Example 1:

Input:

Commands = ["Twitter", "postTweet", "getNewsFeed", "follow", "postTweet", "getNewsFeed", "unfollow", "getNewsFeed"], ids=[[], [1, 5], [1], [1, 2], [2, 6], [1], [1, 2], [1]]

Output: [null, null, [5], null, null, [6, 5], null, [5]]

Explanation: The example demonstrates posting tweets, retrieving news feeds, following users, and unfollowing users. The getNewsFeed returns the most recent tweets from the user and those they follow.

Example 2:

Input: Commands = ["Twitter","postTweet","postTweet","postTweet","getNewsFeed"], ids = [[],[1,1],[2,2],[1,3],[1]]

Output: [null,null,null,null,[3,1]]

Explanation: User 1 posts tweet 1, user 2 posts tweet 2, user 1 posts tweet 3. User 1's newsfeed should return tweets 3 and 1.

Constraints:

Time Complexity

N/A

Space Complexity

N/A

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rulcode

151. Design Twitter

Medium

Topics

Companies

Hint

Understand Before Coding

Visualize This Problem

Open Visualizer

Draw Your Approach

Draw

Example 1:

Input:

Commands = ["Twitter", "postTweet", "getNewsFeed", "follow", "postTweet", "getNewsFeed", "unfollow", "getNewsFeed"], ids=[[], [1, 5], [1], [1, 2], [2, 6], [1], [1, 2], [1]]

Output: [null, null, [5], null, null, [6, 5], null, [5]]

Example 2:

Input: Commands = ["Twitter","postTweet","postTweet","postTweet","getNewsFeed"], ids = [[],[1,1],[2,2],[1,3],[1]]

Output: [null,null,null,null,[3,1]]

Explanation: User 1 posts tweet 1, user 2 posts tweet 2, user 1 posts tweet 3. User 1's newsfeed should return tweets 3 and 1.

Constraints:

Time Complexity

N/A

Space Complexity

N/A

151. Design Twitter

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Constraints:

Learn

Topics

Companies

Hint

Use Cases

151. Design Twitter

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Constraints:

Learn

Topics

Companies

Hint

Use Cases