Algorithms, Blockchain and Cloud

This post shares a hands-on programming lesson with my son, using the VS Code AI Agent to clean up his GitHub Pages homepage. It reflects on how programming education is changing in the AI era: beyond writing code manually, kids now need to learn how to describe requirements clearly, command AI agents, understand Git/GitHub workflows, and review AI-generated code responsibly. T...

AI Coding Agents Are Reshaping the Barrier to Programming Coding Is Becoming as Easy as Using a Calculator From Writing Code to Directing AI: The New Role of Programmers My 12-Year-Old Used Copilot to Modify Tetris — Pro...

A stack-based solution for LeetCode 255, Verify Preorder Sequence in Binary Search Tree. The key idea is to track a lower bound: once preorder traversal enters the right subtree of a node, all later values must be greater than that node. LeetCode 255: Verify Preorder Sequence in Binary Search Tree LeetCode 255 asks whether a given array of unique integers can be the

From Phone Booths to AI: The Twilight of Handwritten Code The C++ Books in the Phone Booth When Phone Booths Become Libraries and Programming Becomes Prompting Traditional Programming in the Age of AI Phone Booths, Programming Books, and the End of an Era From Phone Booths to AI: The Twilight of Handwritten Code After dinner, I walked past an old British phone booth that had b...