Database Project: Project Architecture and Design

In this post, I’ll walk through the framework and architecture of my project, explain the module separation, and share why I structured the system in this way.

Leetcode 713. Subarray Product Less Than K

We solve the subarray product problem either with a sliding window in O(n), or by transforming products into prefix sums via logarithms and applying binary search in O(n log n).

Leetcode 523. Continuous Subarray Sum

If two prefix sums have the same remainder modulo k, their difference is divisible by k.

Leetcode 560. Subarray Sum Equals K

The O(n^2) Solution is easy to understand, so I will just explain why the Hash Table works.

Use Scrcpy to Control Android Phone from Computer

Sometimes when I’m playing games on my phone, ads pop up and I get too lazy to reach for it just to click close. I thought it’d be easier if I could control my phone directly with my mouse while sitting at the computer—and that’s how I ended up using scrcpy.

Building a Feature-Rich Console Snake Game in C#

What started as a small classroom exercise—just moving a single player around the console to eat food—quickly grew into something bigger. The more I coded, the more fun it became, and before I knew it, I had expanded the idea into a full Snake game.

Understanding .Net and C# Project Templates

This blog is a note of learning C# and .NET.

GitHub Actions Workflow

GitHub Actions is a CI/CD and automation tool built into GitHub. Workflows allow you to automate tasks like testing, building, deploying, or managing your code lifecycle.

叶

我是一片树叶。

三月初，树皮裂开一道缝，我钻了出来。那时候还冷，风一吹就哆嗦。旁边的老叶子说，别怕，会长大的。

后来我真的长大了。树上的日子很单调，白天晒太阳，晚上数星星。下雨的时候最难受，雨点砸在身上生疼，但雨停了，身上干干净净的，倒也舒服。蝉来了，整天在耳边叫，烦得很。

Microsoft Azure Fundamentals (AZ-900) Cert Prep: 4 Azure Management and Governance

This note covers the management and monitoring, governance and compliance and cost management. This section account for about 30%-35% of the exam and provide a solid understanding of manage and governance Azure.