Data Structures
13 min read
Time and space complexity explained with one practical example
Understand Big O, time complexity, and space complexity by comparing three duplicate-checking solutions.
Read articleThe CodeWithShreya blog
Clear explanations for curious developers
Explore practical tutorials, core CS concepts, interview preparation, and learning strategies.
All articlesDSACore CSProgrammingCareerMore filters coming soon
Operating Systems
9 min read
Processes, threads, and concurrency explained
Understand how modern operating systems schedule and execute your programs.
Coming soonDBMS
10 min read
Why one SQL join returns 5 rows and another returns 12
Learn inner, left, right, and full joins through one clear, practical dataset.
Read articleComputer Networks
12 min read
What really happens when you enter a URL?
Follow a request through DNS, CDN, load balancers, app servers, and downstream services.
Read articleProgramming
12 min read
API works locally but returns 502 after deployment: how to debug it
Learn a practical layer-by-layer process for debugging deployed APIs that fail with 502 Bad Gateway.
Read articleAlgorithms
10 min read
Master binary search patterns
Move beyond simple search and recognize the patterns behind boundary problems.
Coming soonProgramming
11 min read
Make your .NET app speak every user's language
Understand cultures, resource files, translated UI, and culture-aware formatting in .NET apps.
Read articleCareer
7 min read
How to build a focused CS study roadmap
Turn a long list of subjects into a realistic plan you can actually complete.
Coming soon