We’re going to be discussing Add Two Numbers Leetcode Solution in Python which is a Leetcode Medium Problem (#2). The “Add Two Numbers” problem on LeetCode presents an interesting challenge of adding two non-negative integers represented by linked lists. The digits of these numbers are stored in reverse order, and each node in the linked list contains a single digit. The task is to perform the addition and return the result as a linked list. Table of Contents Problem Statement Solution BruteForce Approach Details: Summary: Time Complexity: Optimal Approach Details: Summary: Time Complexi ..read more

The 3Sum problem on LeetCode challenges us to find all unique triplets in an array whose sum equals zero. This problem involves intricate array manipulation and exploration of different algorithmic approaches. In this article, we will walk through the process of solving it using Brute Force, a Better Solution, and an Optimal Solution. Problem Statement Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0. The solution set must not contain duplicate triplets. Leetcode Problem Link – https://le ..read more

Concurrency is an important concept in modern software development that allows multiple computations to happen simultaneously within a program. By using concurrency, developers can create more responsive and scalable applications. One common way to add concurrency in applications is through multithreading. Multithreading allows different parts of a program to run concurrently in separate “threads.” Well-designed multithreaded programs take advantage of multiple CPU cores and run significantly faster than their single-threaded counterparts. However, working with threads also adds complexity. Wi ..read more

A reverse proxy is a useful way to add an extra layer of security and performance to your web applications. In this post, we’ll look at how to set up the popular Nginx web server as a reverse proxy for a Django application running on Linux. Table of Contents What is a Reverse Proxy and Why Use One? Benefits of using Reverse Proxy: Security Performance Reliability Installing Nginx Configuring Nginx as a Reverse Proxy SSL/TLS Encryption Conclusion FAQs What are the benefits of using Nginx as a reverse proxy for Django? Does setting up Nginx with Django require changing my Django code? What ..read more

You need to know OOPs concepts if you’re a programmer, they help you build a good understanding of programming paradigms. As a Python programmer, I want to walk you through the process of instantiating (creating an instance of) a class in Python. This is an essential concept to understand as you build more complex programs using object-oriented programming, not just in python obviously. So, let’s get to it and see how to instantiate a class in Python. Table of Contents Classes in Python How to Instantiate a Class in Python? Conclusion FAQs What is the purpose of the init() method? What is th ..read more

I’m sure there will be a time in your learning or working journey when you will need to implement a retry mechanism to carry out a specific request or function as usual. A Retry mechanism is a decent approach to giving it one or more than one chance to succeed, if things go south. You can find retry mechanisms in various applications such as retrying an API request in case a server is down or something and much more. In this blog post, I will be taking you through 2 approaches for implementing Python retry decorator which will give us an important element of our retry mechanism: One is by usin ..read more

Removing the last character from a string is a common operation in string manipulation. While seemingly simple, JavaScript initially did not provide a direct string function to remove or truncate the last character. However, over the years with more modern syntax and methods added, we now have cleaner options to achieve this. In this quick article, We will briefly review a few different ways to remove the last character from string in JavaScript with examples using different techniques ranging from substring to regular expressions. Table of Contents Remove Last Character from String in JavaSc ..read more

Kubernetes has quickly become the standard for container orchestration, automating deployment, scaling, and operations of containerized apps. However, running performant, resilient Kubernetes infrastructure requires experience – misconfigurations can easily happen. In this Blog Post, we’ll cover Kubernetes best practices refined from real-world experience on what works well when operating large Kubernetes clusters, hundreds of deployments, and mission-critical distributed systems. Table of Contents Kubernetes Best Practices 1. Namespace Organization 2. Resource Requests and Limits 3. Automat ..read more

The set data type in Python is an unordered collection of unique, immutable objects. Sets can be beneficial to efficiently remove duplicates, test membership, and perform mathematical set operations. However, sometimes you need to convert those sets into lists for further processing or serialization. In this post, we’ll clearly understand the differences between Python sets and lists, approaches to convert set to list Python, use cases where this conversion is necessary, best practices around these conversions, and related concepts new Python programmers should understand. Table of Contents P ..read more

CORS (Cross-Origin Resource Sharing) has become an integral security mechanism that restricts how web apps access resources from other domains. By default, browsers block cross-origin HTTP requests to prevent malicious activity. In this blog post, we’ll see how does CORS Protect Users exactly, why cross-origin protections matter for users, and how to design APIs responsibly and clients leveraging CORS capabilities for safety. Table of Contents What is CORS? Why is CORS important for web security? How does CORS work? What are Common CORS Scenarios? Security Implications What are the Best Pract ..read more