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leetcode

Leetcode - Design Twitter Solution

Design a simplified version of Twitter where users can post tweets, follow/unfollow another user, and is able to see the 10 most recent tweets in the user's news feed. Implement the Twitter class: * Twitter() Initializes your twitter object. * void postTweet(int userId, int tweetId) Composes a new

leetcode

Leetcode - Top K Frequent Elements Solution

Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order. Example 1: Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Example 2: Input: nums = [1], k = 1 Output: [1] Constraints: * 1 <