Search found 43 matches

by neverforget
Fri Sep 24, 2021 6:31 am
Forum: Clarifications on Project Euler Problems
Topic: PE0765
Replies: 11
Views: 325

Re: PE0765

urimend wrote: Fri Sep 24, 2021 5:04 am Problem 765 (View Problem) has been modified to clarify the meaning of "double your bet".

Thanks for your observation and feedback.
Thanks urimend, it is much clearer now!
by neverforget
Mon Sep 20, 2021 2:50 pm
Forum: Clarifications on Project Euler Problems
Topic: PE0765
Replies: 11
Views: 325

Re: PE0765

Say I have x gram of gold and I bet b gram (0<=b<=x). If just considering one round, is it correct that I end up with x+2b gram if I win, and end up with x-b if I lose? Not quite. If you have $x$ and wager $b\leq x$ and win, you now have $x-b+2b=x+b$. Do you have any evidence to back up this assert...
by neverforget
Sun Sep 19, 2021 8:08 pm
Forum: Clarifications on Project Euler Problems
Topic: PE0765
Replies: 11
Views: 325

Re: PE0765

abcwuhang wrote: Sun Sep 19, 2021 4:16 pm Say I have x gram of gold and I bet b gram (0<=b<=x). If just considering one round, is it correct that I end up with x+2b gram if I win, and end up with x-b if I lose?
Not quite. If you have $x$ and wager $b\leq x$ and win, you now have $x-b+2b=x+b$.
by neverforget
Sun Sep 19, 2021 9:33 am
Forum: Clarifications on Project Euler Problems
Topic: PE0765
Replies: 11
Views: 325

Re: PE0765

deWalk wrote: Sun Sep 19, 2021 7:07 am must bet be an integer?
You can bet any non-negative real amount you have.
by neverforget
Sat Sep 18, 2021 11:41 pm
Forum: Clarifications on Project Euler Problems
Topic: PE0765
Replies: 11
Views: 325

Re: PE0765

Nowhere is it mentioned the wager must be a fixed proportion. You can pick a different wager before each round, and the amount you pick can depend on the previous rounds' outcomes.
by neverforget
Thu Sep 09, 2021 8:30 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 762
Replies: 3
Views: 194

Re: Problem 762

Yes, though keep in mind that the grid continues to the right (only the height is constrained to 4 cells) and the individual amoebas are indistinguishable.
by neverforget
Sun Aug 08, 2021 3:54 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 761
Replies: 9
Views: 756

Re: Problem 761

True and kind of a spoiler IMHO... Half the fun (frustration?) for me was in realizing why the example values are what they are. I spent many nights totally convinced the dev team had made a mistake.. heh
by neverforget
Sat May 01, 2021 10:29 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 293
Replies: 10
Views: 5153

Re: Problem 293

Circling wrote: Fri Apr 30, 2021 3:00 pm Are the admissable numbers supposed to be less than 10 ** 9, or is the problem asking for the sum of all different PF numbers below 10 ** 9?
The former. The admissible numbers have to be less than 10^9. The question is the sum of all distinct pseudo-Fortunate numbers for those numbers.
by neverforget
Sat Feb 27, 2021 7:41 pm
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 647
Views: 226896

Re: Errors/Warnings/Bugs

I'm also getting same issue on 749. I get the green check mark along with usual correct answer message, but no update to progress or fastest solvers.
by neverforget
Sun Oct 04, 2020 8:26 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 728
Replies: 24
Views: 4346

Re: Problem 728

I also found a solution that works for the test cases but gets WA. For $S(10^8)$ I got something ending in ???, using same modulus. Is it at all possible there is a corner case we all didn't consider that first shows up between $10^3$ and $10^7$?
by neverforget
Wed Aug 05, 2020 7:17 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 713
Replies: 19
Views: 6188

Re: Problem 713

IMO T(8,4)=7 is a crucial hint, but it's small enough to discover with exhaustive search.
There are 28c7=1184040 possible sets to check against each of 8c4=70 possible scenarios.
by neverforget
Wed Oct 01, 2008 7:51 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 210
Replies: 70
Views: 34875

Re: Problem 210

There is a simple answer for the concern for large answers: we can take the answer mod something reasonable, depending on the problem. In this case, however, I don't think this makes the precision problem any less tedious.
by neverforget
Fri Aug 15, 2008 9:19 pm
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

Actually, speaking of that section, I have a minor nitpick. When I have my problems sorted ID ascending, the actions show something like "Sort problems by difficulty in descending order." which is a little confusing. I know it's obvious from looking at the output below what ordering you us...
by neverforget
Fri Aug 15, 2008 9:13 pm
Forum: Recreational
Topic: Deficient squares
Replies: 11
Views: 5174

Re: Deficient squares

A number has a deficient square if and only if the number: a) Is not divisible by 4 and b) Is not divisible by a prime of the form 4k+3. I got the same result, and the number of (non-congruent) square roots is equal to 2^(number of distinct odd prime factors). Also, according to this , the set of n...
by neverforget
Thu Aug 07, 2008 11:41 pm
Forum: Number Theory
Topic: Numbers with Divisibility Conditions
Replies: 5
Views: 7554

Re: Numbers with Divisibility Conditions

Solution in PARI/GP : ex(l,d)={ local(result,x); result=listcreate(length(l)*10); for(i=1,length(l),for(j=0,9,x=10*l[i]+j;if(x%d==0,listput(result,x)))); return(result); } run()={ local(a,result); a=listcreate(9); for(i=1,9,listput(a,i)); for(i=2,1000,a=ex(a,i);if(length(a)>0,result=a,return(result)...
by neverforget
Wed Aug 06, 2008 7:04 pm
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

Good work Colin! I like it :D :D
by neverforget
Wed Aug 06, 2008 1:26 am
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

Tommy137 wrote:I like it... although I'm missing the Great truncated icosidodecahedron or Great dirhombicosidodecahedron :D
Technically, we haven't used any polychorons either.
by neverforget
Tue Aug 05, 2008 11:41 pm
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

Hm another small thing: the text under the image says "platonic solid name" on the problem page and "level x" on the scores and profile pages. Maybe change the problem page to display "level: solid_name" under the image?
by neverforget
Tue Aug 05, 2008 11:19 pm
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

This one's really minor: I think the edges could be a bit more antialiased.
I like the color and shading though.
by neverforget
Tue Aug 05, 2008 11:13 pm
Forum: News, Suggestions, and FAQ
Topic: New Level System (Feedback)
Replies: 66
Views: 24703

Re: New Level System (Feedback)

Nice. There's a cache update timer? I didn't notice that before.....