Programming
Two Sum Problem
Try the Two Sum problem yourself. Step through the brute-force and hash map solutions and see why one is so much faster.
Blog
Practical technical articles and clear explanations.
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Artificial Intelligence
Machine Learning Interactive System Designing
Design interactive machine learning systems with practical guidance on architecture, data, models, APIs, workflows, and deployment.
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Data Engineering
Interactive System Designing
Tick the features you need and watch a system design diagram build itself. A hands-on way to see how real systems fit together.
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Data Science Tools
Spark Executor Calculator
Size your Spark executors in seconds. Enter your nodes, cores and memory to get a sensible executor count, cores and memory.
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Finance Tools
SIP Calculator
See how a monthly SIP could grow. Enter your amount, expected return and years to see what you invest, what you gain and the…
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Artificial Intelligence
Monitoring LLM
An LLM application can look perfectly healthy on the surface. The API is responding, users are getting answers, and the application dashboard is showing…
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Data Science Tools
Data Storage Cost Calculator
Estimate what your data will cost to store each month and year, so you can plan cloud storage budgets with fewer surprises.
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Data Science Tools
Data Compression Calculator
See how much space compression saves. Compare raw and compressed data sizes and plan your storage with real numbers.
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Data Science Tools
Data Volume Calculator
Estimate how much data your system creates, from events per second and event size up to storage per day, month and year.
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Finance Tools
XIRR calculator
Work out the true yearly return on your SIP or any set of cash flows, even when you invest different amounts on different dates.
