Search found 14 matches

by rodiongork
Sat May 08, 2021 10:07 am
Forum: News, Suggestions, and FAQ
Topic: Password recovery with email hash
Replies: 0
Views: 603

Password recovery with email hash

sorry if this was already suggested - haven't found it at once Probably it would be good to re-implement password recovery via email, but without storing emails. The site could ask email on registration, but neither verify nor store it. Rather only hash of email is stored. So when user wants to rec...
by rodiongork
Wed Sep 09, 2015 10:56 am
Forum: News, Suggestions, and FAQ
Topic: Global Ranking
Replies: 15
Views: 10362

Re: Global Ranking

There is no much use in "their names" as you anyway could not see their profiles, e.g. check which problems these people have solved. However I feel that is not exactly correct to rank simply by "how many solved" since solving problems ##1-10 is not as hard as solving ##401-410 :...
by rodiongork
Mon Aug 31, 2015 3:46 pm
Forum: News, Suggestions, and FAQ
Topic: Sign in failed
Replies: 2
Views: 1777

Re: Sign in failed

how to get back my account with same username. I know that since previous year e-mails are no longer stored in user's profile. However if you registered before that, perhaps you may ask administrators to see whether they can send you your key to your e-mail if they have it in the old back-ups somew...
by rodiongork
Sun Aug 16, 2015 7:14 am
Forum: News, Suggestions, and FAQ
Topic: PE has been hacked (02/08/2015 00:42 CEST)
Replies: 36
Views: 16241

Re: PE has been hacked (02/08/2015 00:42 CEST)

What is this other site? I'm afraid it has nothing to do with ProjectEuler. You see, some people have such a business - they buy internet names similar to ones of well-known sites and then put ads or malware here - and collect some profit from it - also hoping that the owner of original site once w...
by rodiongork
Thu Aug 13, 2015 7:29 am
Forum: News, Suggestions, and FAQ
Topic: PE has been hacked (02/08/2015 00:42 CEST)
Replies: 36
Views: 16241

Re: PE has been hacked (02/08/2015 00:42 CEST)

Hi! Could you share more details? Is it about the main url of the site? (https://projecteuler.net) And what exactly avast complained about (or is this precise wording, about unnamed malware?)

I've just tried to open it or to test with some online tools - but I've seen no suspicious activity :-o
by rodiongork
Sat Aug 08, 2015 9:02 am
Forum: Recreational
Topic: Physics site like Project Euler?
Replies: 5
Views: 7393

Re: Physics site like Project Euler?

but a site where you can track your progesss etc. I have just a few of them at CodeAbbey under tag physics - however the site is dedicated to programming, not to physics - so they are mainly of modelling kind. But if anyone is ready to take pains of creating a number of physics problems, probably I...
by rodiongork
Thu Aug 06, 2015 12:15 pm
Forum: News, Suggestions, and FAQ
Topic: PE has been hacked (02/08/2015 00:42 CEST)
Replies: 36
Views: 16241

Re: PE has been hacked (02/08/2015 00:42 CEST)

Please get back online quickly! Probably it is not that easy as just say "I want all back" :) If I understand correctly PE admins now are busy trying to discover how this incident happened to be able to prevent it in future. I wonder, meanwhile, perhaps it is possible to turn on the site ...
by rodiongork
Thu Aug 06, 2015 12:02 pm
Forum: News, Suggestions, and FAQ
Topic: Saving solutions source code
Replies: 2
Views: 2084

Re: Saving solutions source code

There is a simpler way than bitbucket - one can register at github and post solutions as secret gists: https://gist.github.com - this is quite handy for those not acquainted with version control systems - and it is safe as solutions are not visible unless one is logged into one's own account or has ...
by rodiongork
Fri Nov 07, 2014 10:04 am
Forum: Number
Topic: Pandigital multiples (task 38) in hexadecimal and base-36
Replies: 0
Views: 3773

Pandigital multiples (task 38) in hexadecimal and base-36

Solving the 38-th problem I at first found it allows simple analytical approach and then I become curious about solving it in other numeral systems. For example in hexadecimal we can multiply: F * 1 = F F * 2 = 1E ... F * 8 = 78 Thus getting pandigital multiple F1D2E3C4B5A6978 . Further I've found t...
by rodiongork
Wed Aug 20, 2014 10:02 am
Forum: Recreational
Topic: Numbers built of short primes
Replies: 1
Views: 2825

Numbers built of short primes

This problem was asked by my colleague. After I've solved it (scratching my head for about an hour) I decided to put it to my site: Prime Chains . It is about searching for long numbers like 461031379939791939113997931991393133317939371999719 any 5-digit chunk of which is a prime (i.e. 46103, 10313,...
by rodiongork
Wed Aug 06, 2014 6:52 am
Forum: News, Suggestions, and FAQ
Topic: Web site off line Jun 15, 2014
Replies: 55
Views: 28922

Re: Web site off line Jun 15, 2014

Yes it came almost unnoticed! Thanks for sharing - really inspiring news! :D
by rodiongork
Tue Aug 05, 2014 8:44 am
Forum: News, Suggestions, and FAQ
Topic: Web site off line Jun 15, 2014
Replies: 55
Views: 28922

Re: Web site off line Jun 15, 2014

As they explained somewhere before, the hack was of "script injection / uploading" kind, so "discovering" the hack was just "discovering" of new file on the server, with obviously maicious content. I passionately, absolutely hate HackerRank. I know they have posted an a...
by rodiongork
Thu Mar 27, 2014 4:05 am
Forum: Resources
Topic: CodeAbbey - practice problems for novice programmers
Replies: 4
Views: 5811

Re: CodeAbbey - practice problems for novice programmers

The problems look too easy to be of any interest. Yes, I thought so myself, but to my confusion I'm receiving requests to "add more simple problems" :D So the site is definitely targeted to beginners, not to cool guys from competitive programming :) Your site has a CSS problem: Wow! Could...
by rodiongork
Mon Mar 17, 2014 10:13 am
Forum: Resources
Topic: CodeAbbey - practice problems for novice programmers
Replies: 4
Views: 5811

CodeAbbey - practice problems for novice programmers

I've already wrote about my site in this forum, but since many changes were done - here is the updated info: http://codeabbey.com - here is the site with programming problems for beginners CodeAbbey was inspired by ProjectEuler which I like very much, but it contains more general programming tasks,...