Learning vlog - Ryan explains "1513. Number of Substrings With Only 1s" (2025-11-18 19.30.40.mov)

Day 707 - Teaching Kids Programming - Combinatorial Mathematics 1

Eric teaches me: What is leverage in Finance? | 孩子教我搞钱：啥是金融杠杆。

Fantaisie impromptu (Chopin) Rome Fiumicino Airport 即兴幻想曲(肖邦)

Day 706 - Teaching Kids Programming - Two Ways to Prove Square Root of Two is Irrational

The cat from the neighbour came at midnight 邻居的猫半夜又来了 (Ring Camera)

Ryan is practicing new piece: Passacaglia 2025-08-19

Beethoven Sonata # 14 "Moonlight" Op. 27 No. 2 | 贝多芬月光奏鸣曲

Day 705 - Teaching Kids Programming - Number of Equivalent Domino Pairs (Hash Table / Combination)

Ryan shows us how to do logic gates in Minecraft.

Day 704 - Teaching Kids Programming - Generate Binary Strings Without Adjacent Zeros (Fibonacci)

My son tries to play moonlight sonata but our cat is in the way | Ryan弹奏月光奏鸣曲，但猫在捣乱。

Day 703 - Teaching Kids Programming - Segment Tree / SQRT Decomposition / Brute Force / Prefix Sum

My son plays WD in DOTA2 and got a Ultra Kill!

I paid my son to teach me 付费让娃教我。

My son is leetcoding every day now.. He said he wants to be a software engineer.

Day 702 - Teaching Kids Programming - Another BFS to Generate Binary Strings Without Adjacent Zeros

Chessly Enjoys the Piano so much ! 人不如猫系列 - 下辈子做只猫吧

Deploy and Run DeepSeek R1 Locally Using Two Commands | 两条命令就可以跑本地DeepSeek-R1模型

Day 701 - Teaching Kids Programming - Find the Integer Square Root (Brute Force Algorithm)

My son says that I am not "Senior" enough.. | 我儿说我不够 Senior (汗)

Day 700 - Teaching Kids Programming - Generate Binary Strings Without Adjacent Zeros (BFS Algorithm)

Mozart: Andante grazioso and Vars. 1–6 (1st movt from Sonata in A, K.331) Performed by Eric | 莫扎特

Uwe Korn: Caballos Españoles, Performed By Eric | 爵士钢琴

ChatGPT writes a Python Script to Interact with Grok LLM from x.ai (Free $25 Credit) | 调用x.ai的Grok

Day 699 - Teaching Kids Programming - Butterfly Theorem in Quadrilateral (Geometry)

Day 698 - Teaching Kids Programming - Delete Nodes From Linked List Present in Array

Best Halloween Decoration, Cambridge, How many Skeletons? 2024年英国剑桥Girton村的一家万圣节装饰

Windsor Mallard Splash Tour | 温莎野鸭飞溅之旅: 水陆两用旅游观光船 Dour Tour

Day 697 - Teaching Kids Programming - A Simple Digit Game: Find if Digit Game Can Be Won

Day 696 - Teaching Kids Programming - Convert Array to Linked List and Vice Versa

Day 695 - Teaching Kids Programming - Generate Binary Strings Without Adjacent Zeros (Recursive DFS)

Day 694 - Teaching Kids Programming - Cubic Root of an Integer (Binary Search Algorithm) - a^3=54872

Day 693 - Teaching Kids Programming - Find the Maximum Achievable Number (Math)

Day 692 - Teaching Kids Programming - Minimum Number of Chairs in the Room (Max Prefix Sum)

Day 4 Finance: Long and Short | 教娃搞钱-第4课 做空和做多

Day 691 - Teaching Kids Programming - Minimum Increment to Make Array Unique (Sorting/Greedy)

My son says: you probably get paid more if working at Google than Microsoft 娃说在谷歌工作挣得多/在微软挣得少

Day 3 Finance: Active and Passive Income 教娃搞钱第3课：主动和被动收入

Day 690 - Teaching Kids Programming - Using Stack to Remove Digits and Characters on the Left

Day 689 - Teaching Kids Programming - SQL to Determine the Binary Tree Node Types (Left/Right Join)

My son says it is probably my Chinese Accent 娃嫌弃我的中式发音 Chinglish

Day 688 - Teaching Kids Programming - Redistribute Items to Boxes (Knapsack Problem, Binary Search)

Day 2 Finance: What is Asset and Liability? 什么是资产和负债？

Day 687 - Teaching Kids Programming - SQL Cross Join Query (SELECT/Cartesian Product)

Day 686 - Teaching Kids Programming - Introduction to SQL Full Outer Join Query (SELECT)

Radiation Monitor: Airplane Takeoff First 20 Minutes (NR-950 Pudibei) | 飞机起飞阶段的辐射变化

Day 685 - Teaching Kids Programming - Introduction to SQL Right Join Query (SELECT)

Day 1 Finance: How the Banks Make Money? 教娃搞钱第1课：银行是怎么挣钱的

Day 684 - Teaching Kids Programming - Introduction to SQL Left Join Query (SELECT)

Day 683 - Teaching Kids Programming - Introduction to SQL Inner Join Query (SELECT)

Day 682 - Teaching Kids Programming - SQL to Determine the Binary Tree Node Types (Nested Select)

Day 681 - Teaching Kids Programming - Using Hash Map to Count the Right Triangles in a Binary Matrix

Day 680 - Teaching Kids Programming - The @cache Function Decorator in Python

Chopin - Fantaisie Impromptu 钢琴演奏：肖邦 - 即兴幻想 (Performed by Ryan)

Day 679 - Teaching Kids Programming - Implement the Pairwise in Python using the Iterator/Yield

Day 678 - Teaching Kids Programming - Greedy Algorithm to Redistribute Items to Boxes (Knapsack)

Day 677 - Teaching Kids Programming - Count Alternating Subarrays (Dynamic Programming Algorithms)

Day 676 - Teaching Kids Programming - Latest Time After Replacing Characters (Decision Tree)

Airbus 350 (China Southern Airline) CZ673 Camera Views: Beijing Daxing-London Heathrow 空客350飞机视角