LeetCode

404. Sum of Left Leaves

Sum of Left Leaves of a binary tree.

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 Large Language Model

Notes on RAG

Design for AI agentic workflows

Large Language Model

What's next for AI agentic workflows

Design for AI agentic workflows