Problem 728

A place to air possible concerns or difficulties in understanding ProjectEuler problems. This forum is not meant to publish solutions. This forum is NOT meant to discuss solution methods or giving hints how a problem can be solved.
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.

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


See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
forarslys
Posts: 10
Joined: Thu Jul 30, 2020 9:36 pm

Re: Problem 728

Post by forarslys »

I am sorry if I am just misunderstainding, but doesn't the problem statement need some information on distinctness of coins?
Without information, shouldn't F(3, 2) equal to 2 instead of 4? - HHH or TTH.
Since they are arranged in a circle, TTH, HTT, THT should all be identical. To obtain the assumed correct value, I think the coins should be numbered 1 to n and first arranged in this order clockwise in a circle... or something like that, though the expected condition is deduced from test cases.
sirpi
Posts: 2
Joined: Thu Apr 18, 2019 1:54 pm

Re: Problem 728

Post by sirpi »

Just being curious after having more than 100 solvers:
is there a plan to adjust the difficulty of this problem?
User avatar
hk
Administrator
Posts: 11257
Joined: Sun Mar 26, 2006 10:34 am
Location: Haren, Netherlands

Re: Problem 728

Post by hk »

10 weeks after publication a problem is moved from recent problems to the archives.
At that moment a difficulty assessment is automatically calculated.
If there are less than 100 solvers the assessment is temporary.
Image
sirpi
Posts: 2
Joined: Thu Apr 18, 2019 1:54 pm

Re: Problem 728

Post by sirpi »

Thanks for the clarification, though I was aware of the regular calculation method.
I asked my previous question because this problem - if one only checks the fastest solver's table - seems more difficult than it actually is since there was no correct answer in the first 7 hours.
But as far as I understood there won't be any manual adjustments in the final difficulty calculation.
User avatar
hk
Administrator
Posts: 11257
Joined: Sun Mar 26, 2006 10:34 am
Location: Haren, Netherlands

Re: Problem 728

Post by hk »

You're right.
However, after the correct answer was on the site the number of correct answers grew rather fast.
The difficulty is measured as the speed of solutions not the number of them.
Image
Post Reply