7-Day C++ Interview Preparation Plan
Your saved questions plus a day-by-day plan. Add questions with Save to → 7-Day Job Prep on any question page.
Day-by-day plan
Day 1Language fundamentals
- Revise compilation, linking, declarations and the One Definition Rule
- Practise const, static, references and overloading questions
- List ten undefined behaviour examples and explain each
- Solve five easy coding problems in C++
Day 2Pointers and memory
- Draw stack and heap diagrams for small programs
- Implement a mini unique_ptr and explain each special member
- Solve three linked list problems with raw pointers
- Revise smart pointers, cycles and weak_ptr
Day 3OOP and design
- Explain vtable, virtual destructor and object slicing aloud
- Write a Shape or Payment hierarchy with an abstract interface
- Implement a class following the rule of five
- Practise two low-level design questions
Day 4STL and algorithms
- Revise complexity of every major container
- Implement an LRU cache with list and unordered_map
- Solve six array, string and hashing problems using STL
- Review iterator invalidation rules
Day 5Templates and modern C++
- Write a class template and a variadic function
- Explain move semantics, perfect forwarding and noexcept
- Use optional, variant and string_view in a small program
- Revise C++20 concepts and ranges with examples
Day 6Concurrency
- Implement a blocking queue with condition variables
- Solve the odd-even printing problem with two threads
- Explain deadlock, data races and atomics with examples
- Revise memory ordering basics and false sharing
Day 7Tools, projects and mock interview
- Revise gdb, sanitizers, perf and CMake commands
- Prepare a two-minute explanation of your best C++ project
- Prepare three STAR stories for HR questions
- Take a timed mock interview and review weak areas
Frequently asked questions
Can I prepare for a C++ interview in 7 days?
Seven days is enough to revise and sharpen, not to learn from zero. Use the plan to cover each core topic once, practise questions daily and finish with a mock interview.
How do I add questions to the plan?
On any question page choose Save to → 7-Day Job Prep. Saved questions show up at the top of this page.
How many hours a day should I study?
Two to four focused hours a day works for most people: one hour of revision, one to two hours of questions, and the rest on projects or mock answers.
Questions to practise each day
Company-wise C++ questionsExperience-wise C++ questionsRole-wise C++ questionsCity-wise C++ questionsMost asked C++ questionsScenario-based questionsPractical / hands-on questionsHR & behavioural questionsC++ mock interviewOnline assessment questionsTechnical round questionsManagerial round questionsC++ topic sheets