Search found 67 matches

by kenbrooker
Wed Dec 05, 2018 11:18 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 032
Replies: 31
Views: 8077

Re: Problem 032

purpurato wrote:
Wed Dec 05, 2018 10:56 pm
Can I send you my remarks via mail ?
Happy to try to help...
by kenbrooker
Tue Dec 04, 2018 6:16 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 485
Replies: 8
Views: 909

Re: Problem 485

Jochen_P wrote:
Tue Dec 04, 2018 2:08 pm
Finally! Now only one to go to reach level 8 :roll:
:D :D :D :D :D :D :D :D
by kenbrooker
Tue Dec 04, 2018 12:07 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 485
Replies: 8
Views: 909

Re: Problem 485

Jochen_P wrote:
Mon Dec 03, 2018 5:38 pm
I keep getting 16739 for S(1000,10), pretty fast but obviously wrong.
This drives me mad :evil:
You might want to reconsider the number of divisors you compute for perfect squares...
by kenbrooker
Wed Nov 14, 2018 3:17 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 521
Replies: 9
Views: 2313

Re: Problem 521

Ahhh... Silly me... I thought --
"This forum is not meant to publish solutions."
"In particular don't post any ... results."
by kenbrooker
Tue Nov 06, 2018 7:49 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 641
Replies: 4
Views: 1116

Re: Problem 641

I can confirm the <snipped by moderator> but
I don't think it's within the spirit of
PE to confirm beyond the givens...
by kenbrooker
Sat Nov 03, 2018 11:55 pm
Forum: Number Theory
Topic: Project Euler Factoring Challenge
Replies: 3
Views: 1828

Re: Project Euler Factoring Challenge

Well you can discount the people who ask for help with a Project Euler problem,
who ask for a PM and then never read the PM sent...

Of course, in the classic logical conundrum,
one can never prove the "never"...

My strange way of expressing...
Empathy...
by kenbrooker
Mon Oct 29, 2018 7:28 pm
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 462
Views: 65768

Re: Errors/Warnings/Bugs

Re: lost progress Post by euler » Sat May 20, 2017 6:10 am It is possible that you've lost progress and we could never rule out that possibility, but in every other case that we've worked on - and we have spent a lot of time in the past dealing with these requests - it always turns out that the mem...
by kenbrooker
Wed Oct 24, 2018 8:46 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 002
Replies: 54
Views: 13252

Re: Problem 002

mafridi...

Please see PM from me...
by kenbrooker
Mon Oct 22, 2018 8:36 pm
Forum: Recreational
Topic: Project Euler - Learning to code efficiently
Replies: 2
Views: 1141

Re: Project Euler - Learning to code efficiently

https://hackernoon.com/what-it-took-to-land-my-dream-software-engineering-job-17c01240266b Something to ponder until a(n official) Project Euler reply is posted and... Something m O re... https://medium.freecodecamp.org/all-you-need-to-know-about-big-o-notation-to-crack-your-next-coding-interview-9d...
by kenbrooker
Sun Oct 21, 2018 6:11 pm
Forum: Number
Topic: "Fixed Points"
Replies: 5
Views: 1204

Re: "Fixed Points"

Came across the theory of Coincidence Points where f(x) = g(x) and, as two and three Posts above, where M(X) = Xyields(X) is " called " a Fixed Point . Coincidence Points theory is a generalization of Fixed Points theory where a key characteristic is a guaranteed solution, that is there must be some...
by kenbrooker
Wed Oct 17, 2018 7:28 pm
Forum: Number
Topic: "Fixed Points"
Replies: 5
Views: 1204

Re: "Fixed Points"

Much Obliged jaap , I am impressed that you identified the source (! and hopefully someday you will see why I didn't) and maybe "usefulness" is why Smullyan defered to -- "I call X a Fixed Point..." as opposed to what normally, formally defines a "Fixed Point". Fixed Points being the terminating co...
by kenbrooker
Wed Oct 17, 2018 1:09 am
Forum: Number
Topic: "Fixed Points"
Replies: 5
Views: 1204

Re: "Fixed Points"

Thanks for asking jaap , "In what case?" Good question. At the risk of boring you, here's the context (which I recommend just skimming) -- Arnie next explained to me that most of the previous results were but special cases of one very lovely general fact involving the important concept of Fixed Poin...
by kenbrooker
Mon Oct 15, 2018 9:47 pm
Forum: Number
Topic: "Fixed Points"
Replies: 5
Views: 1204

"Fixed Points"

Per Wikipedia, a "Fixed Point" occurs when the function f(c) = c. There's a similarly simple graph too... Per another reputable source: "I call X a Fixed Point of [function] M if X yields M(X)." In this case, X is a string and X is a function, a function of itself. For example, if X = 33233 then X "...
by kenbrooker
Tue Oct 09, 2018 3:51 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 217
Replies: 21
Views: 5419

Re: Problem 217

So far, One-Thousand Two-Hundred and Seven mathematicians/
programmers have agreed to the "correct" solution so:
womri wrote:
Tue Oct 09, 2018 2:29 am
Is there a chance that there is a bug with the solution?
Maybe... One in 1,207?

And some prior Posts
identically echo
your dilemna...
by kenbrooker
Sat Oct 06, 2018 10:00 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 090
Replies: 43
Views: 10081

Re: Problem 090

I think this prior Post addresses your recommendation, particularly the last sentence, as demonstrated in the Problem description: Re: Problem 090 Post by Animus » Tue Jan 24, 2017 4:43 am srinathmkce wrote: ↑Mon Jan 23, 2017 8:24 pm Consider we are able to form all the squares with these two combin...
by kenbrooker
Tue Oct 02, 2018 10:43 pm
Forum: Resources
Topic: Please Help re UVa @ https://uva.onlinejudge.org
Replies: 7
Views: 1173

Re: Please Help re UVa @ https://uva.onlinejudge.org

The only thing I did was enter in Google's search field: "uva online judge java". DERN... I Googled on "uva online judge," not thinking to add "java," and carefully searched through 6 or 7 pages without finding any such PURE GOLD... Let that be a lesson to me... But any happy ending is... Fun enoug...
by kenbrooker
Tue Oct 02, 2018 3:15 pm
Forum: Resources
Topic: Please Help re UVa @ https://uva.onlinejudge.org
Replies: 7
Views: 1173

Re: Please Help re UVa @ https://uva.onlinejudge.org

Thankyou Both, hk and jaap , As you said jaap , (I) should call the class Main. (and) Surely somewhere on that site there is some kind of documentation or help file that tells you about what it expects of the code you want it to run? And hk dug out that documentation/help file from the site itself(...
by kenbrooker
Mon Oct 01, 2018 7:49 pm
Forum: Resources
Topic: Please Help re UVa @ https://uva.onlinejudge.org
Replies: 7
Views: 1173

Re: Please Help re UVa @ https://uva.onlinejudge.org

Excellent Idea jaap ... I experienced that very same "public" embarrassment in trying to use Oracle's Java SE Development Kit... But UVa still isn't satisfied: Compilation error for submission 22058779 Main.java:2: error: class aUVa100 is public, should be declared in a file named aUVa100.java publi...
by kenbrooker
Sun Sep 30, 2018 10:07 pm
Forum: Resources
Topic: Please Help re UVa @ https://uva.onlinejudge.org
Replies: 7
Views: 1173

Please Help re UVa @ https://uva.onlinejudge.org

Thought I'd give UVa Online Judge a try but can't get to First Base because I have received no reply to my online queries to UVa in almost a month... I submitted the following code for the 3n+1 Problem #100: /* THE 3N + 1 PROBLEM Problems in Computer Science are often classified as belonging to a ce...
by kenbrooker
Mon Sep 17, 2018 11:47 am
Forum: Recreational
Topic: Suggest me a book
Replies: 10
Views: 2272

Re: Suggest me a book

For elementary number theory, and with used offerings as cheap as $6.25 @ Amazon.com,
consider The Book of Numbers by John Conway (Mr Fractran, as per PE Problem #308 : )