October 2018 - Page 5

Batalov · 2018-10-11, 20:45

Well, I happen to know that my solution has area 570

Batalov · 2018-10-11, 21:00

Of course, maybe they have an elegant solution, instead.

bsquared · 2018-10-11, 21:12

Quote:

Originally Posted by Batalov

Of course, maybe they have an elegant solution, instead.

At least some measure of elegance is needed to get a solution at all, I think :)
I know that my brutish methods haven't been very effective anyway. I've been able to get dozens of solutions with 164 unique triangles, but can't get that last one

a1call · 2018-10-11, 23:43

For the record 1st solution seems to have been submitted on September 30th.
Still this must have been one of the most difficult.
I spent more effort on this challenge than any other and have noting to show for it.

EdH · 2018-10-12, 02:52

I've had eight i7 cores running a c++ compiled program for about a week with no indication. But, unlike B², my programs will only print something if all 165 triangles have a unique size.

Every extra check, adds extra overhead, which is why I have no way of even telling where in the search my programs are. I may have to run a similar program on another i7 and "assume" the others are running faster.

axn · 2018-10-12, 03:02

Quote:

Originally Posted by a1call

For the record 1st solution seems to have been submitted on September 30th.

Ahem...

Quote:

Originally Posted by axn

Not listed does not mean no solvers at all. When they get around to updating the page, we'll see the actual dates. Almost sure someone would've solved it within hours.

a1call · 2018-10-12, 04:16

I believe in granting credit where it's due. Here you were almost right (off by only 5 days or so, then again a few hours is subjective).

But I still think you were wrong about the relevance of the empty sum thingy. Just saying.

Dr Sardonicus · 2018-10-12, 14:05

Quote:

Originally Posted by Batalov

Of course, maybe they have an elegant solution, instead.

That would be my guess. It does say,

Quote:

We invite visitors to our website to submit an elegant solution.

This is the only generic special note I see about submitted solutions. There is no "extra credit" asterisk as there was with the "obscure triples" problem.

Batalov · 2018-10-13, 23:05

Still plausible. However, yes, there is a solution with S=567. :-)
Let's see if that yields an asterisk.

mtve · 2018-10-14, 07:21

Quote:

Originally Posted by Batalov

Still plausible. However, yes, there is a solution with S=567. :-)
Let's see if that yields an asterisk.

S=552 exists too. I guess the limit is between 450 and 500.

bsquared · 2018-10-15, 12:58

I finally managed to find a solution (yay!). But getting down to S=567 or S=552 or lower I'm guessing will take a different method than the one I'm using. Those are impressive scores.

2018-10-12, 04:16	#51
a1call "Rashid Naimi" Oct 2015 Remote to Here/There 3×5×137 Posts	I believe in granting credit where it's due. Here you were almost right (off by only 5 days or so, then again a few hours is subjective). But I still think you were wrong about the relevance of the empty sum thingy. Just saying. Last fiddled with by a1call on 2018-10-12 at 04:49

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2018-10-11, 20:45	#45
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 10010100000101₂ Posts	Well, I happen to know that my solution has area 570

2018-10-11, 21:00	#46
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 3⁶·13 Posts	Of course, maybe they have an elegant solution, instead.

2018-10-11, 23:43	#48
a1call "Rashid Naimi" Oct 2015 Remote to Here/There 3×5×137 Posts	For the record 1st solution seems to have been submitted on September 30th. Still this must have been one of the most difficult. I spent more effort on this challenge than any other and have noting to show for it.

2018-10-12, 02:52	#49
EdH "Ed Hall" Dec 2009 Adirondack Mtns 11×347 Posts	I've had eight i7 cores running a c++ compiled program for about a week with no indication. But, unlike B², my programs will only print something if all 165 triangles have a unique size. Every extra check, adds extra overhead, which is why I have no way of even telling where in the search my programs are. I may have to run a similar program on another i7 and "assume" the others are running faster.

2018-10-13, 23:05	#53
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 3⁶·13 Posts	Still plausible. However, yes, there is a solution with S=567. :-) Let's see if that yields an asterisk.

2018-10-15, 12:58	#55
bsquared "Ben" Feb 2007 3×1,171 Posts	I finally managed to find a solution (yay!). But getting down to S=567 or S=552 or lower I'm guessing will take a different method than the one I'm using. Those are impressive scores.