Hiring Guide

Top 40 C++ Coding Challenges for Senior Developers

Expert-curated collection of advanced C++ coding problems, optimized strategies, and implementation strategies for senior engineering roles

Core Concepts
Data Structures and Algorithms
System Design
Coding and Debugging

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Core Concepts

Data Structures and Algorithms

System Design

Coding and Debugging

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Top 40 C++ Coding Challenges for Senior Developers

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Core Concepts

Implement perfect forwarding for a variadic template function

Implement a lock-free queue using atomic operations

Implement a thread-safe singleton pattern in modern C++

Write a function to detect a cycle in a linked list using constant space

Implement a custom smart pointer with reference counting

Design a memory pool allocator for fixed-size objects

Write a compile-time factorial calculator using template metaprogramming

Create a type-safe enum class with reflection capabilities

Implement CRTP (Curiously Recurring Template Pattern) for static polymorphism

Design a constexpr string view class

Data Structures and Algorithms

Implement an LRU (Least Recently Used) Cache with O(1) time complexity for both get and put operations.

Design and implement a thread-safe ring buffer in C++.

Implement a sliding window maximum algorithm that returns the maximum element in each window of size k.

Implement a lock-free stack using atomic operations in C++.

Design a concurrent hash map with fine-grained locking.

Implement a memory pool allocator for fixed-size objects.

Design a task scheduler with priority queue and thread pool.

Implement a trie (prefix tree) with autocomplete functionality.

Design a thread-safe object pool with timeout-based resource reclamation.

Implement a wait-free queue using atomic operations.

System Design

Design a scalable URL shortener service like bit.ly

Design a real-time chat system supporting millions of concurrent users

Design a distributed cache system like Redis

Design a social media feed system like Twitter

Design a distributed task scheduler system

Design a distributed rate limiter

Design a distributed logging and monitoring system

Design a distributed key-value store

Design a notification service supporting multiple channels

Design a distributed configuration management system

Coding and Debugging

Write a function to check if a string is a palindrome in C++, handling both alphanumeric and special characters.

Implement a function to flatten a nested vector in C++ without using recursion.

Create a thread-safe singleton class in modern C++.

Write a function to find the first non-repeating character in a string using C++.

Implement a circular buffer class with thread-safe operations in C++.

Write a memory leak detector class that can track allocations and deallocations.

Implement a smart pointer with reference counting in C++.

Create a function to detect and break cycles in a linked list.

Implement a thread pool with a job queue in C++.

Write a template metafunction to calculate factorial at compile-time.

Accelerate Your Technical Hiring

Interview Questions for Other Related Skills

Why Index.dev?

Our talent is hand-picked

We prioritize speed

We respect your budget

Top 40 C++ Coding Challenges for Senior Developers

AI-Powered Technical Assessment

Core Concepts

Implement perfect forwarding for a variadic template function

Implement a lock-free queue using atomic operations

Implement a thread-safe singleton pattern in modern C++

Write a function to detect a cycle in a linked list using constant space

Implement a custom smart pointer with reference counting

Design a memory pool allocator for fixed-size objects

Write a compile-time factorial calculator using template metaprogramming

Create a type-safe enum class with reflection capabilities

Implement CRTP (Curiously Recurring Template Pattern) for static polymorphism

Design a constexpr string view class

Data Structures and Algorithms

Implement an LRU (Least Recently Used) Cache with O(1) time complexity for both get and put operations.

Design and implement a thread-safe ring buffer in C++.

Implement a sliding window maximum algorithm that returns the maximum element in each window of size k.

Implement a lock-free stack using atomic operations in C++.

Design a concurrent hash map with fine-grained locking.

Implement a memory pool allocator for fixed-size objects.

Design a task scheduler with priority queue and thread pool.

Implement a trie (prefix tree) with autocomplete functionality.

Design a thread-safe object pool with timeout-based resource reclamation.

Implement a wait-free queue using atomic operations.

System Design

Design a scalable URL shortener service like bit.ly

Design a real-time chat system supporting millions of concurrent users

Design a distributed cache system like Redis