C++ – Index

Welcome to the complete C++ resource centre. Refresh the essentials first, then grind the placement tracks.

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Revision Guide

Interview-focused revision of everything you need — from move semantics to modern C++.

• Part 1: Language Foundation & Modern Basics Types, const correctness, references, auto, and structured bindings.
• Part 2: Classes, OOP & Virtual Constructors, destructors, rule of five, inheritance, and the vtable.
• Part 3: Memory, Smart Pointers & Move Semantics new/delete, RAII, unique_ptr/shared_ptr/weak_ptr, and move vs copy.
• Part 4: Templates, STL & Standard Library Templates, concepts, containers, iterators, and algorithms.
• Part 5: Concurrency, Lambda & Top Gotchas Threads, mutexes, atomics, lambdas, and the gotcha sheet.

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Top 10 Questions

• Top 10 C++ Questions - Part 1 The 10 most frequently asked C++ placement questions.

Top 25 Questions

• Top 25 - Part 1 First 15 of the top 25 C++ placement questions.
• Top 25 - Part 2 Remaining 10 of the top 25 C++ questions.

Top 50 Questions

• Top 50 - Part 1 First 15 of the most asked C++ questions.
• Top 50 - Part 2 Middle 15 of the top 50 C++ questions.
• Top 50 - Part 3 Final 20 advanced C++ questions.

Output Questions

• Output Questions - Part 1 Predict-the-output C++ puzzles.
• Output Questions - Part 2 More C++ predict-the-output puzzles.

Comparison Questions

• Comparison Questions - Part 1 C++ comparison puzzles.
• Comparison Questions - Part 2 More C++ comparison puzzles.

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Section-wise Q&A

• 1. Move Semantics & Ownership Move semantics, ownership, and rvalues.
• 2. Smart Pointers & Memory unique_ptr, shared_ptr, weak_ptr, and RAII.
• 3. OOP, Virtual & Destructors Polymorphism, vtables, and destructor rules.
• 4. Templates & Concepts Template metaprogramming and concepts.
• 5. Concurrency & Atomics Threads, mutexes, atomics, and memory ordering.
• 6. Exceptions & Error Handling Exception safety and handling.