Search found 335 matches

by rayfil
Wed Feb 22, 2012 9:59 pm
Forum: Recreational
Topic: How important is your IQ?
Replies: 5
Views: 5406

Re: How important is your IQ?

Your IQ may have some importance. I wouldn't expect someone with an IQ of 70 solving too many problems. However, whether it is 110 or 180, it would then depend on your level of math knowledge and interest. If math has never been one of your favorite subjects because of learning difficulties (IQ is n...
by rayfil
Sat Feb 18, 2012 9:47 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 150
Replies: 15
Views: 6345

Re: Problem 150

From the problem description
Sub-triangles can start at any element of the array and extend down as far as we like (taking-in the two elements directly below it from the next row
Isn't that clear enough? How could you ever make valid upside-down triangles with that definition?
by rayfil
Wed Feb 15, 2012 3:14 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 371
Replies: 42
Views: 22195

Re: Problem 371

SET-500 and SET-500 is same car twice I have to admit that you may have a point there IF they are both Oregon plates. And in heavy traffic, you could see it numerous times, specially if it's on the car in front of you. 8-) But, with a bit of imagination, numerous other scenarios could be elaborated...
by rayfil
Wed Feb 15, 2012 12:54 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 371
Replies: 42
Views: 22195

Re: Problem 371

If so, for example, SET-500 and SET-500 will be a win. Right? Right. Even if it's XYZ-500 and ABC-500, or any other letter combinations. From the problem description, expected number of plates he needs to see for a win As hk implied, you never see your own plate while on the road. (And, even if you...
by rayfil
Sat Feb 11, 2012 5:00 am
Forum: Game Theory
Topic: New abstract game : winning strategy?
Replies: 9
Views: 13240

Re: New abstract game : winning strategy?

I can see the pictures correctly. I'm using IE8 under WinXP.
by rayfil
Tue Feb 07, 2012 9:36 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 051
Replies: 60
Views: 29698

Re: Problem 051

You start with a number such as axbcxdxefgh where the "x" digits are identical. The other digits may be any digit, even the same as the "x". Although the example given has 11 digits, the integer you start with may contain whatever number of digits you wish. The "x" digi...
by rayfil
Fri Jan 27, 2012 2:31 am
Forum: News, Suggestions, and FAQ
Topic: Increasing problem difficulty
Replies: 7
Views: 6012

Re: Increasing problem difficulty

With your background in maths, you should be able to solve well over 200 of the existing problems without too much difficulty. You will learn a few more programming tricks in the forums as you go along. Don't be shy to tap into the vast amount of information available on the internet to fill in some...
by rayfil
Tue Jan 24, 2012 2:08 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 059
Replies: 114
Views: 45392

Re: Problem 059

You must add up the ascii value of ALL the characters of the decrypted text.
by rayfil
Thu Jan 19, 2012 3:08 am
Forum: News, Suggestions, and FAQ
Topic: Increasing problem difficulty
Replies: 7
Views: 6012

Re: Increasing problem difficulty

A large portion of the 1XX problems can still be solved without advanced knowledge of maths. The proportion of such problems decreases in the 2XX and 3XX series, although relatively easy ones have still been (and will continue to be) provided.
by rayfil
Thu Jan 12, 2012 2:33 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 366
Replies: 19
Views: 6715

Re: Problem 366

@ albert

Please try to post in existing topics related to specific problems. You can easily find them by searching for "Problem XXX", making sure to pad the problem number with leading 0's if it less than 100.
by rayfil
Mon Jan 02, 2012 3:57 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 050
Replies: 42
Views: 19316

Re: Problem 050

@ apdwyer51 For you information, questions related to specific problems should be posted to the existing topic related to such problem (if one already exists obviously :) ). Those topics have " Problem XXX " as their subject, where XXX is the problem number padded in front with 0's if need...
by rayfil
Sun Dec 18, 2011 4:00 am
Forum: News, Suggestions, and FAQ
Topic: Date I have solved each problem
Replies: 1
Views: 1353

Re: Date I have solved each problem

Not from this site. However, you generally write some code to solve each problem and save it as a source file in order to feed it to your compiler or script handler. At least the source file (even if it's only a script) and compiled exe (if it gets compiled) would have a time stamp. You can always r...
by rayfil
Wed Dec 14, 2011 9:45 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 106
Replies: 1
Views: 2625

Re: Problem 106

1) Is it implied that the strictly increasing elements are integers but not necessarily consecutive integers? YES. Obviously; otherwise it could never satisfy even the first rule. Or does it mean that the set is such that, for any two non-empty disjoint subsets of the set, the second rule is satisf...
by rayfil
Tue Nov 15, 2011 4:17 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 059
Replies: 114
Views: 45392

Re: Problem 059

Let's assume that the encryption key is "abc". You need to XOR the first character of the text with the first character of the key "a". Then XOR the second character with "b" and the third character with "c". The fourth character would be XORed with "a&qu...
by rayfil
Fri Nov 11, 2011 1:37 am
Forum: News, Suggestions, and FAQ
Topic: Recent Article And Website Problems
Replies: 4
Views: 3511

Re: Recent Article And Website Problems

Send me a PM with the e-mail address you are currently using and I will check if it matches the one in your profile. If it's the same, we will have to look deeper.
by rayfil
Tue Nov 08, 2011 4:02 am
Forum: News, Suggestions, and FAQ
Topic: How can I reset my account?
Replies: 6
Views: 3237

Re: How can I reset my account?

Thanks TripleM.

kballard, all problems are now unsolved in your account.
by rayfil
Tue Nov 08, 2011 3:30 am
Forum: News, Suggestions, and FAQ
Topic: How can I reset my account?
Replies: 6
Views: 3237

Re: How can I reset my account?

perhaps it's just an admin thing? If you access your account, you can change many items in your profile. You should also be able to see which problems you have already solved (ticked boxes). However, having been an admin for so long, you may be right. Could you confirm which is the very last item y...
by rayfil
Tue Nov 08, 2011 3:03 am
Forum: News, Suggestions, and FAQ
Topic: How can I reset my account?
Replies: 6
Views: 3237

Re: How can I reset my account?

If you click on the "Account" tab, you can reset yourself whichever problem you wish from solved to unsolved.

Note: If you haven't done so already, you will first have to authenticate your account the next time you try to access it.
by rayfil
Fri Nov 04, 2011 2:55 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 020
Replies: 42
Views: 14598

Re: Problem 020

You can probably debug it yourself if you use the tools which you have available. For example, use your calculator to get the size and the first few digits of n! and compare what your code is giving you for that n. With properly chosen values of n, you can zoom in rapidly to where your code starts b...
by rayfil
Fri Oct 28, 2011 2:53 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 015
Replies: 63
Views: 15542

Re: Problem 015

Please remember that, for ease of searching and listing in numerical order, problem numbers less than 100 have been padded with leading 0's to make them 3-digit numbers. Your post has been transferred to, and merged with, the proper topic.