Sorting
Sorting by comparing and rearranging values
Change the input,see each step.
Run algorithms and technical examples. Change the values and see what happens at each step.
Bubble sort
Compare two neighbors. If the left value is larger, swap them.
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Explore with your own valuesTry an idea.
How are numbers sorted?
Follow the comparisons and swaps that put an array in order.
Open exampleHow does a TCP connection begin?
Follow the three messages a client and server exchange to establish a connection.
Open exampleHow does text become tokens?
Choose a sample sentence to inspect its token IDs and embedding vectors.
Open exampleLearning topics
19 topics
Searching
Finding values and paths in arrays and graphs
Data Structures
Structures for storing and retrieving data
Trees
Traversing and maintaining hierarchical data
Dynamic Programming
Dynamic programming with reusable subproblem results
Greedy
Comparing local choices with globally optimal results
Backtracking
Searching by testing constraints and undoing choices
Graphs
Connections, paths, and minimum costs in graphs
Strings
Algorithms for finding patterns in text
Network
Network layers and TCP connection messages
Hardware & Memory
GPU memory layout and data connections
Docker
Containers, images, networking, and storage
Kafka
Event storage, distribution, replication, and offsets
Git
Branch integration and change review
Kubernetes
Pod scheduling, rollout, recovery, and resource management
Temporal
Workflow execution, retries, replay, and durable waits
LLM
Computation from token processing to generation
Probability & Statistics
Numeric distributions and leading-digit frequencies
Modern Physics
Comparing clock measurements under relative motion