Had they included just one of Tony Hoare’s achievements, many scientific careers would be considered prestigious enough. His had a long list, unfortunately closed by his passing away at the age of 92 ...

Understand the problem first: Read the question carefully, identify inputs, outputs, and constraints before writing any code to avoid confusion and mistakes. Break complex problems into small steps: ...

In Mathematics, there are no shortcuts to understanding, but there are definitely smarter paths to scoring well.

Update (2025/10/31): Incorporated QOJ OCR data from @cjwen6. Thanks a lot for the contribution! Also added HTTPS. Simplify the statement & remove background by prompting LLM. Embed the simplified ...

Abstract: This letter investigates the time-optimal trajectory generation for a six-degrees-of-freedom articulated robot moving along a given parametric path. In the generation procedure, besides the ...

Abstract: Redundant manipulators are often required to not only track target trajectories but also actively avoid obstacles in practical applications. A real-time trajectory planning method is ...