Planning a Telecom Network for Less with Kruskal's Algorithm
How sorting the cheapest connections first builds a minimum-cost fiber network
Bibash Shrestha - Concepts in Action
A personal blog exploring computer science and Flutter development through real-world applications. Topics span discrete maths, AI, cryptography, IoT, and software engineering, each grounded in the problems they actually solve, not just theory. Also sharing notes from books and podcasts along the way.
Latest articles
How OSPF Routers Find the Fastest Path, Using Dijkstra's Algorithm
Why the shortest-looking route isn't always the cheapest one, and how routers actually decide
Playfair Cipher Explained: The Encryption British Soldiers Used in the Field
How encrypting letters in pairs beat frequency analysis, using nothing but pen and paper
Wiring an IoT Sensor Network for Less with Prim's Algorithm
How a spanning tree keeps a sensor network connected while minimizing energy cost
Vigenère Cipher Explained: The Encryption That Stayed Unbroken for 300 Years
How a repeating keyword fixed Caesar's biggest weakness, and why it eventually broke too
Caesar Cipher Explained: A 2,000-Year-Old Encryption Trick
The simple shift cipher behind ROT13, and why it's trivially broken today
