9 seconds to get both stars is absolutely insane - there had to be some AI assistance here.
Come to think of it, a pipeline that feeds the problem text into an LLM to generate a solution and automatically runs it on the input and attempts to submit the solution, doing this N times in parallel, could certainly solve the first few days' problem in 9 seconds.
Come to think of it, a pipeline that feeds the problem text into an LLM to generate a solution and automatically runs it on the input and attempts to submit the solution, doing this N times in parallel, could certainly solve the first few days' problem in 9 seconds.