Coding & Skills
153 articles in this topic
Python for GATE DA: Programming and Data Structures, the Output Questions to Master
Build the Python mental model that GATE DA output and complexity questions demand, with a complete aliasing trace, a structure-cost table and safe rules for common traps.
Language Design in Programming Languages: Syntax, Types, Scope and a Worked Evaluation
Trace one expression from source text to a value, then compare the design rules that make scope, typing, evaluation and mutation behave differently.
Function Overloading and Default Arguments in C++: Rules and Runnable Examples
Learn why overloading and default arguments are different C++ mechanisms. Compile one invoice program, trace every call, and repair ambiguous code.
Genetic Algorithms in AI: Complete Guide with a Worked One-Generation Example
Learn the complete genetic algorithm loop, then calculate selection, crossover, mutation, and fitness improvement by hand on a four-chromosome population.
Command Line Arguments in C: argc and argv Tutorial with Runnable Examples
Learn how argc and argv carry command line input into a C program, then practise argument tracing, numeric conversion, validation, and common fixes.
HTML Forms Explained: Input Types, Validation Attributes, and the MCQs That Test Them
Build one registration form, trace its submitted data, and learn the input and validation details that HTML MCQs and frontend interviews repeatedly test.
OOPs Concepts in Java: Inheritance, Polymorphism, Abstraction and Encapsulation with Worked Interview Questions
Turn the four OOP pillars into predictable Java behaviour. Trace superclass references, subclass objects, overridden methods, hidden fields and common follow-ups.
String Problems in Python for Coding Rounds: Palindromes, Anagrams and Compression Solved
Python turns common string problems into one-liners, but interviewers usually remove that shortcut next. Learn the Pythonic and manual solutions for three recurring patterns.
HashMap Internal Working in Java: Hashing, Buckets, Treeification and the Interview Answer
Build the interview answer in four layers: index calculation, collision handling, resizing and treeification. Then test it against a mutable-key failure.
HTML Basics: Complete Guide to Tags, Structure and a Worked Web Page
Learn what HTML elements mean, how a valid document fits together, and how to build and audit a complete profile page with fixed, traceable markup.
Virtual Functions and VTable in C++: Runtime Dispatch with Runnable Examples
Follow one C++17 shape program from virtual calls to a conceptual VTable trace. Then fix common override, slicing, and destructor mistakes.
Game Playing in AI: Minimax, Alpha-Beta Pruning, and How Exams Test Them
Build the full game-playing AI toolkit through one tree solved first with minimax and then alpha-beta pruning, plus evaluation functions, chance nodes, and exam traps.