#Unisala universe
Publish-Subscribe is a messaging pattern where:Publishers send messages without knowing who receives them.Subscribers listen without kn
High Frequency Problems (Sorted by Frequency)https://unisala.com/llm/conversation/87DITfU?leafId=3676cfa1-37c8-4168-8211-df0cd93d07d7🟢 Easy Problems202. Happy
If you’ve ever built a search bar or input form that sends API calls, you’ve probably heard of debounce. Or maybe you’ve created a backend API then you've proba
List of question to upgrade your javascript skill.3373. Maximize the Number of Target Nodes After Connecting Trees II2618. Check if Object Instance of Class2619
Given a string s, rearrange the characters of s so that any two adjacent characters are not the same.Return any possible rearrangement of&nb
A sort that return a specific order of the vertex of a given a graph as long as the graph satisfies certain condition. This is a simple algorithm to learn.First
All communication in distributed systems is based on explicit message exchange (sending and receiving messages).When process P wants to communicate with process
A example of linear regression:1.Statistical assumptions:Underlying trend is linearData deviations from predicted values are Gaussian.B/c above, MSE cost functi
Spiking Neurons vs traditional artificial neurons.Spiking neurons:Computational neuron models that mimic the biological neurons more closely than traditional ar
MTTF (Mean Time To Failure) is a reliability measure used to quantify the dependability of computer systems and components.Definition and UsageMTTF represents t
A deep dive into different ways to implement rate-limiting in JavaScript, comparing tradeoffs and use cases. Let's explore 5 approaches! 🧵👇1️⃣ Basic Rate-Limi
Arrays are where we start as devs. But what if I told you arrays secretly stack superpowers?Let's go beginner → expert: mastering arrays, stacks, monotonic stac
You are given an integer array nums of size n containing each element from 0 to n - 1 (inclusive). Each of the
🧠 Why Learn This?Matrix rotation isn't just a coding interview favorite It's used in AI, ML, and image processing to manipulate data efficiently.Think:Rotating
You are given an integer array nums. The range of a subarray of nums is the difference between the largest and smallest element in the
🔁 Problem Restatement (in simpler terms)You are given:A directed graph with n nodes.Each node i has a color, colors[i] ∈ {a-z}.Each path from one node to anoth
1️⃣ Understanding the ProblemThe Decode String problem asks us to decode a string like 3[a2[c]] into accaccaccFormat: k[encoded_st
The Problem:Given an integer array nums, you need to find one continuous subarray such that if you only sort this subarray in non-decreasing orde
🐇 What is RabbitMQ?In real world systems, services fail, crash, restart, or scale dynamically. You can't afford tight coupling between them. RabbitMQ ensures n
🌍 The Why?Event Timeline Visibility:Think of mountains as tasks, events, or ads that want to be seen. Only those not completely covered by others are visible.U
🌊 The ProblemWe have a 2D map grid filled with '1's land and '0's water. An island is a group of connected '1's (horizontally or verti
Chapter 1: The Mysterious SlowdownAlex, a junior engineer at a fast-paced AI startup, was proud of their latest code. It processed massive datasets for a new re
Once upon a time, in a village of coders, there lived a gardener named Prashant. He had two ways of planting flowers in his garden Greedy and Non
🧠 Why Are You Learning This?The minimum-weight arborescence (MWA) problem is a fundamental problem in graph theory with applications in:Network desig
