Teaching Kids Programming: Videos on Data Structures and Algorithms Your laptop keyboard is faulty, and whenever you type a character ‘i’ on it, it reverses the string that you …
Implement a rate limiter with the following methods: RateLimiter(int expire) constructs a new rate limiter with the given expire time. limit(int uid, int timestamp) returns whether the user should …
You are given a binary tree root containing unique values, and an integer target. Find the node with value target and return the node that’s directly right of it …
Teaching Kids Programming: Videos on Data Structures and Algorithms Introduction to Data Structure Double-Ended Queue So far, we have learned the Queue (First In First Out) and Priority Queue …
You have a browser of one tab where you start on the homepage and you can visit another url, get back in the history number of steps or move …
