I have a not too shabby solution for PE484 that agrees with my brute force for values ≤10^8 below, but I am told my answer is wrong!
DELETED
Can anyone confirm these values, to ensure I've interpreted the question correctly?
EDIT: I realised I made a stupid boundary error :facepalm:
Problem 484
Forum rules
As your posts will be visible to the general public you are requested to be thoughtful in not posting anything that might explicitly give away how to solve a particular problem.
This forum is NOT meant to discuss solution methods for a problem.
See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
As your posts will be visible to the general public you are requested to be thoughtful in not posting anything that might explicitly give away how to solve a particular problem.
This forum is NOT meant to discuss solution methods for a problem.
In particular don't post any code fragments or results.
Don't start begging others to give partial answers to problems
Don't ask for hints how to solve a problem
Don't start a new topic for a problem if there already exists one
Don't start begging others to give partial answers to problems
Don't ask for hints how to solve a problem
Don't start a new topic for a problem if there already exists one
See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
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thedoctar
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Problem 484
Last edited by thedoctar on Sun Aug 10, 2025 9:30 am, edited 1 time in total.
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philiplu
- Posts: 92
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Re: Problem 484
Please delete your guesses. As the Forum Rules in pink at the top of the page state, don't post any results. Yeah, that happens from time to time, but that's a lot of guesses at large values. Way too spoilery, even for wrong answers.
