LeetCode

405. Convert a Number to Hexadecimal

Convert a decimal number to hexadecimal.

LeetCode

623. Add One Row to Tree

Insert a layer to a binary tree.

RAG LLM

Notes on RAG

Design for AI agentic workflows

LLM

What's next for AI agentic workflows

Design for AI agentic workflows

Machine Learning

Rules of Machine Learning

Advice for machine learning