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Fast access to formulas, concepts, programming syntax, and essential shortcuts for competitive exams, developer resources, and more. Everything you need in one place.
Latest and Updated Java Linked List operations with all the code and examples. covering singly linked lists, doubly linked lists, circular linked lists, common operations, time complexity analysis, and problem-solving techniques. Essential concepts and implementations for Java developers.
Comprehensive Python programming reference guide covering syntax, data structures, functions, OOP, and more. Essential Python commands and examples for quick reference.
This page is a fast reference for topics you revisit often. Each cheatsheet is short, scannable, and focused on the exact facts you need during practice or revision.
What you'll find: common math formulas and identities, quick definitions for OS/DBMS/Networks/Compiler Design, core CS notes, and ready-to-use snippets for Python, C/C++, and Java. Most pages include a minimal example and a short "remember" note to avoid typical mistakes.
How to use it: search for a term, open the sheet, scan the headings, copy what you need, and get back to questions. If a topic is missing or outdated, suggest an update - we keep these pages current based on exam patterns and user requests.