View unanswered posts | View active topics It is currently Sun Oct 22, 2017 7:24 pm



← Back to the Calcudoku puzzle page




Reply to topic  [ 9 posts ] 
 Today's (12/31/2012) 7x7 difficult 
Author Message

Posted on: Mon Dec 31, 2012 2:29 am




Posts: 93
Joined: Sat May 14, 2011 1:08 am
Post Today's (12/31/2012) 7x7 difficult
I believe I have solved this puzzle, but the 1^ cage in the middle is being flagged as incorrect with 1,5,7,7 as its contents -- integer overflow perhaps?


Profile

Posted on: Mon Dec 31, 2012 2:40 am




Posts: 192
Joined: Tue May 24, 2011 4:55 pm
Post Re: Today's (12/31/2012) 7x7 difficult
Same. And while all other puzzles today have been solved a number of times, the counter to the left of this one reads "(solved 0 time(s) so far)".


Profile

Posted on: Mon Dec 31, 2012 3:00 am




Posts: 690
Joined: Fri May 13, 2011 6:51 pm
Post Re: Today's (12/31/2012) 7x7 difficult
Same problem. Possible overflow in the calculation of powers depending on the sequence followed by the software, since (5 ^ 7) ^ 7 = 1,776... e+34. Consequently, the correct combination c3 = 7, d3 = 1, c4 = 5, d4 = 7 is not accepted as valid giving the red indication in cage 1^. At this time still 0 solutions as observed by bram. Suggestion: To modify the operation to 20+, for instance.


Profile

Posted on: Mon Dec 31, 2012 4:43 am




Posts: 2
Joined: Sun Dec 18, 2011 4:12 am
Post Re: Today's (12/31/2012) 7x7 difficult
Glad to see not just me - 1^ last cage I completed and was going crazy going over rest to make sure hadn't made any errors [confused]


Profile
User avatar

Posted on: Mon Dec 31, 2012 10:10 am




Posts: 2194
Joined: Thu May 12, 2011 11:58 pm
Post Re: Today's (12/31/2012) 7x7 difficult
Yes, this was reported by many people, seeing it only now (8.09am here),
my first guess is also no overflow in the generator/solver, but overflow
in the code that's running in the browser.

Edit: this turns out to have been the case.

The problem has been "solved" now by a hack: if a cage has the ^ operator,
and 1 as the result, and there's a 1 in there somewhere, it is approved..
(should work :-) )


Profile

Posted on: Mon Dec 31, 2012 1:41 pm




Posts: 192
Joined: Tue May 24, 2011 4:55 pm
Post Re: Today's (12/31/2012) 7x7 difficult
pnm wrote:
The problem has been "solved" now by a hack: if a cage has the ^ operator,
and 1 as the result, and there's a 1 in there somewhere, it is approved..
(should work :-) )

That hack has a very human, reasoning-rather-than-just-calculating feel to it. Your seem to be on your way to developing strong AI here [smile]

Happy new year – hopefully with lots of new subscribers!


Profile
User avatar

Posted on: Mon Dec 31, 2012 1:45 pm




Posts: 2194
Joined: Thu May 12, 2011 11:58 pm
Post Re: Today's (12/31/2012) 7x7 difficult
bram wrote:
That hack has a very human, reasoning-rather-than-just-calculating feel to it. Your seem to be on your way to developing strong AI here [smile]

Yes, I'm waiting for the site to become self-aware [scared]


Profile

Posted on: Tue Jan 01, 2013 5:06 am




Posts: 4
Joined: Tue Sep 11, 2012 1:16 pm
Post Re: Today's (12/31/2012) 7x7 difficult
pnm wrote:
The problem has been "solved" now by a hack: if a cage has the ^ operator,
and 1 as the result, and there's a 1 in there somewhere, it is approved.


There are other cases that could still cause trouble. E.g. for an "8^" cage with 6 elements, you could have 8 = 2^3^1^7^7^7, but the 7^7^7 would cause an overflow.


Profile
User avatar

Posted on: Tue Jan 01, 2013 3:01 pm




Posts: 2194
Joined: Thu May 12, 2011 11:58 pm
Post Re: Today's (12/31/2012) 7x7 difficult
nylimb wrote:
There are other cases that could still cause trouble. E.g. for an "8^" cage with 6 elements, you could have 8 = 2^3^1^7^7^7, but the 7^7^7 would cause an overflow.
Absolutely. That shows the drawback of putting in a hack.. [blink]


Profile
Display posts from previous:  Sort by  
Reply to topic   [ 9 posts ] 

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
All forum contents © Patrick Min, and by the post authors.

Forum software phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware.