Category Topics

General

Create topics here that don’t fit into any other existing category.

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Site Feedback

Discussion about this site, its organization, how it works, and how we can improve it.

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Announcements & Rules

Official announcements, forum rules, and how this space works. New here? Read the pinned welcome first. Staff post; students reply.
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Start Here & Introductions

New students say hello, set up your account, and learn how the forum, online classroom and online judge fit together. No question is too basic.
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AP Computer Science

AP CSA (Java) and AP CSP, aligned to the College Board curriculum. Coursework help, weekly lab questions, FRQ practice and mock-exam discussion. Earn university credit before you graduate.
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Coding Competitions

Training for CCC junior & senior, USACO and CSP-J/S — weekly problem sets, contest strategy and post-contest discussion. Do NOT post solutions to a contest while it is still running.
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Robotics

LEGO Mindstorm, MakeBlock and BrickPi — build, program and compete with real robots. Builds, wiring, sensors and competition teams. Photos and videos of your builds welcome.
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AI Frameworks

Modern AI from first principles with PyTorch — tensors, training loops, and projects like Ultralytics YOLO. Share notebooks, results, and where your model went wrong.
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Large Language Models

How LLMs work and how to build with them responsibly — DeepSeek, Hugging Face and Llama. The technology behind ChatGPT and Claude, hands-on.
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Computer Vision & Video

Teach computers to see: OpenCV, FFmpeg and GStreamer — real-time vision and video-processing projects. Bring your pipeline and your results.
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Microcontrollers

Arduino-class embedded programming: ESP32 and Arduino — sensors, motors, serial comms and real hardware projects. Code that touches the physical world.
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Arm Linux

Embedded Linux on Raspberry Pi, NVIDIA Jetson and Luckfox — the OS and command line that power real robots. Setup, drivers and on-device compute.
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Project Showcase

Show off what you built — robots, vision systems, contest solutions, side projects. Demo videos and write-ups welcome. Mirrors the Demos page on the main site.
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Online Judge Help

Questions about the Longer Vision online judge (ide.longervision.ca): submissions, verdicts (AC/WA/TLE), environment setup and year-round practice. Bug reports welcome.
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