C# Practical Coding Problems

Aggregate errors by minute

Aggregates log entries into per-minute error counts with deterministic output.

Build a paged result from a list

Implements a safe in-memory paging helper with metadata and boundary handling.

Calculate invoice total with discounts

Implements invoice total calculation with quantity, unit price, percentage discount, and rounding.

Chunk items for batch processing

Implements chunking for batch processing without dropping final partial batches.

Compare semantic version strings

Implements comparison for simple semantic version strings with missing patch parts treated as zero.

Count normalized words in text

Implements a word-frequency counter with normalization, punctuation handling, and stable ordering.

.NET Full Stack

Full-cycle .NET full-stack interview preparation.

A role-based preparation path covering C#, ASP.NET Core APIs, data access, frontend integration, testing, deployment, system design, real-life scenarios, and behavioral interview topics.

.NET Backend

Backend-focused .NET interview preparation.

A backend-focused .NET preparation path covering C#, ASP.NET Core APIs, data access, reliability, testing, and practical coding.

C# Practical Coding Problems

Hands-on coding rounds with practical C# data, API, and reliability exercises.

A practical C# coding interview track covering strings, dictionaries, grouping, parsing, pagination, validation, rate limiting, retry, caches, log aggregation, and edge-case thinking.