Algorithm to Compute the Revenue Milestones
Revenue Milestones X keeps track of the revenue X makes every day, and X wants to know on what days X hits certain revenue milestones. Given an array of …
How to Modify the Git Commit Messages After Your Push Your Branch?
Git is a popular and widely used version control system. If you stage your local changes and commit it to local branch, you can change the commit message by: …
Personal Cloud Options to Backup Data and Photos
With the advancement of technology, the harddisk capacity is getting bigger and bigger, so is our data. We have important data, and photos, vidoes, which should be regularly backup. …
Greedy Algorithm to Find the Lexicographically Smallest Sequences After At Most K Element Swaps
Given a sequence of n integers arr, determine the lexicographically smallest sequence which may be obtained from it after performing at most k element swaps, each involving a pair …
ReactiveX/RxJava Tutorial: Compute the Fibonacci Numbers using RxJava.Flowable Asynchronously
RxJava (https://github.com/ReactiveX/RxJava) is the Reactive Extension for Java Virtual Machine (JVM). It allows you to develop asynchronous code in the reactive manner. If you come from imperative or OOP, …
What are Big4 Tech Companies looking for in the technical interviews (Phone Screening)?
Big4 refers to Google, Amazon, Facebook and Microsoft. They are the top internet/software companies that most Software Engineers dream for. The technical interviews consist of Big4 are quite similar: …