Search found 1462 matches

by hk
Tue May 28, 2019 11:56 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 672
Replies: 2
Views: 1614

Re: Problem 672

Is "no nothing" a typo for "do nothing"? Yes. Corrected. Shouldn't there be a floor function around the $\frac{7^K-1}{11}$ term? I don't think there is a universally accepted meaning for a sum where the upper limit for the index variable is not an integer. Please investigate if $\frac{7^K-1}{11}$ i...
by hk
Mon May 20, 2019 8:12 am
Forum: News, Suggestions, and FAQ
Topic: Recover account
Replies: 4
Views: 351

Re: Recover account

Oops. I'm getting old ;-(
Well, trying to remember your password is the only way to recover your account as you didn't generate an account recovery key.
Hint: perhaps you changed your password last year.
by hk
Sun May 19, 2019 11:55 am
Forum: News, Suggestions, and FAQ
Topic: Recover account
Replies: 4
Views: 351

Re: Recover account

I looked up your account:
Last Visit:

Saturday, 19th May 2018, 11:11 pm
So it seems that you remembered your password after all.

(usually people find out their password after some head scratching.)
by hk
Sun May 12, 2019 7:36 pm
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 492
Views: 82231

Re: Errors/Warnings/Bugs

There's no bug.
When tshark solved #669 his account was unlisted. After solving #669 he made his account public again.
Please note that unlisted accounts can be made public again.
by hk
Sun May 12, 2019 11:49 am
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 492
Views: 82231

Re: Errors/Warnings/Bugs

Account imstupid on projecteuler.chat deleted.
by hk
Fri May 10, 2019 7:47 pm
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 492
Views: 82231

Re: Errors/Warnings/Bugs

Please change that username. I'm not intending to remember that that isn't a suspicious username.
By not changing it you're taking the risk of being permanently delisted again.
by hk
Fri May 10, 2019 11:34 am
Forum: News, Suggestions, and FAQ
Topic: Please let me recreate my (real) CHAT account
Replies: 2
Views: 275

Re: Please let me recreate my (real) CHAT account

Account FutureNerd on projecteuler.chat deleted.
by hk
Fri May 10, 2019 8:31 am
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 492
Views: 82231

Re: Errors/Warnings/Bugs

Hi, I haven't logged into my account for a long while (10 years, I believe) after graduating from high school. I participated in OI/ACM/Topcoder/Codeforces at that time. The day before yesterday one of my current fellow students asked me about how to solve Problem 667 and I logged back, solved it i...
by hk
Tue May 07, 2019 7:56 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 186
Replies: 16
Views: 6624

Re: Problem 186

I think you overlooked the very first sentence of the problem:
'Here are the records from a busy telephone system with one million users:'
by hk
Fri May 03, 2019 7:21 pm
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 492
Views: 82231

Re: Errors/Warnings/Bugs

Apologies. Everything should be allright now.
by hk
Sat Apr 13, 2019 2:15 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 663
Replies: 11
Views: 1596

Re: Problem 663

This board is not meant to discuss solutions.
As made clear from the onset it is meant to resolve problems with understanding what is asked.
As far as I can see both of you understand perfectly what is asked.
Attemps to discuss things further will be deleted.
by hk
Thu Apr 11, 2019 8:19 am
Forum: News, Suggestions, and FAQ
Topic: Display issue
Replies: 4
Views: 414

Re: Display issue

Did you do a forced reload of the page? (CTRL-F5) when on that page.
(The image might still be in the browser cache)
by hk
Tue Apr 02, 2019 6:48 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 663
Replies: 11
Views: 1596

Re: Problem 663

From Wikipedia:
"In mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some or no elements without changing the order of the remaining elements'
See: https://en.wikipedia.org/wiki/Subsequence
by hk
Sun Mar 17, 2019 8:36 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 221
Replies: 12
Views: 4360

Re: Problem 221

The first two are correct. The second two not.
by hk
Sun Mar 17, 2019 7:53 pm
Forum: News, Suggestions, and FAQ
Topic: Project Euler Style Sheet Update
Replies: 33
Views: 3131

Re: Project Euler Style Sheet Update

I can't reproduce the problem.
by hk
Sun Mar 10, 2019 1:19 pm
Forum: News, Suggestions, and FAQ
Topic: Not listed in Country statistics
Replies: 1
Views: 781

Re: Not listed in Country statistics

I sent you a PM.
by hk
Sat Mar 09, 2019 9:28 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 660
Replies: 1
Views: 535

Re: Problem 660

If a triangle is n-pandigital for multiple n all of them are counted.
by hk
Fri Mar 08, 2019 8:08 pm
Forum: News, Suggestions, and FAQ
Topic: Project Euler Style Sheet Update
Replies: 33
Views: 3131

Re: Project Euler Style Sheet Update

That can be restored by the users themselves in the Account tab.
by hk
Fri Mar 08, 2019 9:26 am
Forum: News, Suggestions, and FAQ
Topic: Project Euler Style Sheet Update
Replies: 33
Views: 3131

Re: Project Euler Style Sheet Update

JTJL wrote:
Fri Mar 08, 2019 1:49 am
Hi, I found that I disappeared from Fastest Solvers list after style sheet update. I'm pretty sure that for problem 650, 651, 652, 653, 654 I'm in the top 100. Besides, I was also removed from Eulerians. :(
Problem solved (I hope).
by hk
Wed Feb 20, 2019 1:19 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 656
Replies: 9
Views: 654

Re: Problem 656

Thanks Jaap.
I made it: Calculate the sum of $H_{100}(\sqrt \beta)$ for $\beta \in T$.