Search found 42 matches

by RobertStanforth
Thu May 09, 2019 9:06 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 653
Replies: 2
Views: 84

Re: Problem 653

My problem that I've realised that if two particles were to move toward each other while they are an odd number of millimetres away, they would meet at a point with half-integer position ( with a .5); which seemingly goes against what the rest of the problem is implying i.e that all values are inte...
by RobertStanforth
Mon Apr 22, 2019 7:09 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 013
Replies: 76
Views: 13144

Re: Problem 13

reza1615 wrote:
Mon Apr 22, 2019 4:40 am
Hi all,
I don't undrestand the description of problem 13. what does it need? would you please tell me by an example?
Hi reza1615,
I merged your post with the existing topic for this problem. You may find what you need in this thread.
by RobertStanforth
Tue Feb 19, 2019 8:48 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 656
Replies: 9
Views: 548

Re: Problem 656

vamsikal3 wrote:
Tue Feb 19, 2019 4:17 am
Can I PM someone to verify my result for the 21st term in the sequence given in the example for square_root(31)?
No, that is still not the purpose of this forum.
As Animus said, "it is not appropiate to ask for help for recent problems that have not even reached 100 solvers".
by RobertStanforth
Fri Feb 01, 2019 6:27 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 090
Replies: 46
Views: 11735

Re: Problem 090

For the purposes of this problem, an "arrangement of two cubes" means a set of two cubes, where each cube is a set of six digits. Thus your "set of sets" interpretation is correct. If two "arrangements of two cubes" are found to differ from one another only be reordering the cubes, or by reordering ...
by RobertStanforth
Sun Nov 18, 2018 11:46 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 643
Replies: 8
Views: 2434

Re: Problem 643

vamsikal3 wrote:
Sun Nov 18, 2018 9:35 am
The correct text is: For example, 24 and 40 are 2-friendly because ....
Thanks, Vamsi. This is fixed now.
by RobertStanforth
Fri Nov 16, 2018 10:02 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 420
Replies: 11
Views: 4284

Re: Problem 420

To be clear: 'squaring' a matrix refers specifically to matrix multiplication of a matrix with itself.
by RobertStanforth
Sat Oct 06, 2018 11:48 am
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 490
Views: 78952

Re: Problems with [code] statement

I think the closing tag needs to contain '/code' rather than '\code'. In the thread for problem 633 in the forum, I posted my solution: https://projecteuler.net/thread=633;page=2#316037 The problem is that the "code" token or "code=Matlab" doesn't work: the token is printed out, and the code followi...
by RobertStanforth
Wed Sep 12, 2018 9:37 pm
Forum: News, Suggestions, and FAQ
Topic: Project Euler problem proposal rejects.
Replies: 4
Views: 1858

Re: Project Euler problem proposal rejects.

I have already sent vamsikal3 a PM. The Admins are looking into this.
kenbrooker wrote:
Wed Sep 12, 2018 9:31 pm
vamsikal3,

I hope my PM didn't thwart an
Administrator's reply to
your question?
by RobertStanforth
Tue Aug 14, 2018 6:56 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 353
Replies: 10
Views: 3900

Re: Problem 353

Are we supposed to calculate every single integer set of coordinates or are the only coordinates going to be (0,r,r) and stuff like that The admissible paths (from which you are asked to find the one with the lowest risk) are permitted to use any of the integer-coordinate points on the surface of $...
by RobertStanforth
Wed Aug 01, 2018 7:12 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 381
Replies: 9
Views: 3777

Re: Problem 381

enigmaticcam wrote:
Tue Jul 31, 2018 11:44 pm
I'm getting an answer, but it's not correct. However I'm able to produce the correct number when p < 10^2. Can someone confirm if the next few powers of 10 are correct?
I've removed your values from public view, but I can confirm that they were all correct.
by RobertStanforth
Mon Jun 25, 2018 8:36 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 301
Replies: 9
Views: 1612

Re: Problem 301

Ah, I see. Nevertheless, the question is correct as stated.
{0, 0, 0} is a losing triple, but it does not count towards the answer.
If people need to count it to get the correct answer, it is likely they have an off-by-one error elsewhere.
by RobertStanforth
Mon Jun 25, 2018 7:29 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 301
Replies: 9
Views: 1612

Re: Problem 301

I'm happy to clarify that {0,0,0} is indeed a losing triplet. The player is "unable to move (because no stones remain)".
by RobertStanforth
Mon Jun 11, 2018 5:46 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 062
Replies: 15
Views: 3747

Re: Problem 062

@Winthermute - I have merged your post with the existing clarification topic for this problem.
by RobertStanforth
Thu May 10, 2018 3:06 pm
Forum: Clarifications on Project Euler Problems
Topic: problem 206
Replies: 33
Views: 9183

Re: problem 206

I expect your calculator is rounding to ten significant digits, so the fractional part has been truncated.
by RobertStanforth
Thu May 10, 2018 2:58 pm
Forum: Clarifications on Project Euler Problems
Topic: problem 206
Replies: 33
Views: 9183

Re: problem 206

1928374655647382910 is not a perfect square.
by RobertStanforth
Thu May 10, 2018 2:50 pm
Forum: Clarifications on Project Euler Problems
Topic: problem 206
Replies: 33
Views: 9183

Re: problem 206

@thechosenone98: I have moved your post to the correct forum for problem clarifications. Also, please do not post answers in public view !!! I have removed it from your post. To answer your question, 1388659302 is not a valid solution. The value you give for its square is not correct, and is not eve...
by RobertStanforth
Mon May 07, 2018 1:10 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 023
Replies: 52
Views: 14561

Re: Problem 023

Dear Liad777, I have moved your post to the existing thread for this problem. In general, the "Problem xxx" naming convention (with leading zeros) in this forum means it should be possible to find such threads where they already exist. As for your question, 28123 is merely an upper bound that you ar...
by RobertStanforth
Wed May 02, 2018 6:26 pm
Forum: Recreational
Topic: why are hints for solutions not allowed?
Replies: 2
Views: 2336

Re: why are hints for solutions not allowed?

Project Euler's approach has always been "If you can't solve it, you can't solve it", which is why PE does not provide an open forum for discussing solution methods.

You may be interested in this thread, in which a tangentially related point was discussed.
by RobertStanforth
Sat Apr 28, 2018 12:25 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 352
Replies: 35
Views: 10196

Re: Problem 352

@hamsterofdeath: I sent you a PM.
by RobertStanforth
Fri Apr 27, 2018 6:16 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 493
Replies: 5
Views: 1905

Re: Problem 493

This is indeed the correct forum for discussing issues with understanding the wording of a problem. The problem only talks about the number of distinct colours in the draw. So, whether the balls have any other distinguishing marks (aside from their colour) is irrelevant. The order of the draw (and w...