Why I Switched to Python for Algorithm Interviews

Real Interview Question — Implement a Key-value Store

Question

Design a Key-value Store, which has the following API

• start(), start a transaction, and returns the transaction id
• put(int transactionId, String…

Real Interview Question — Implement a Multi-threaded Web Crawler

Question

Real Interview Question — Design a Coding Contest Site

Note: if you are new to system design…

How I Prepare for Algorithm Interviews

There are many merits tech companies try to seek in their software engineer candidates…

Real Interview Question — Design a Donation Application [2024 Version]

In this interview, we need to…

Implement User Session

In this interview question, you will be asked to implement session management. We will write the code in PHP and use a…

System Design Basics 1. Globally Unique ID Generator

Globally unique IDs are ubiquitous in distributed systems. Companies use globally unique IDs to distinguish a lot of things, visitors, orders, transactions, and tweets, just to name a few. In a distributed system, we need a Globally…

System Design Basics 3 — Concurrency

Concurrency is the idea of doing multiple tasks at the same time. Concurrency can happen in a…