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: We study a staffing optimization problem in multi-skill call centers. The objective is to minimize the total cost of agents under some quality of service (QoS) constraints. The key challenge ...