DecOct
Posted: Fri Dec 12, 2008 4:40 pm
Was the 91 = 'Y' bug intensional?
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Posted: Fri Dec 12, 2008 5:26 pm
I think 91 = 'y' and 131 = 'Y'.
Posted: Fri Dec 12, 2008 5:46 pm
I'm still confused as to how 91 = 'y' then 
even if you treated the 91 as bad octal that makes it 72 in decimal which is 'H'. y is '171' in octal... so i'm not sure how or under what math '17' became a '9'
It almost threw me for a loop when I was decoding the message. With the mix of octal and decimal and the upper/lower characters then suddenly a '[', I thought I'd done something wrong or was on the wrong track.
even if you treated the 91 as bad octal that makes it 72 in decimal which is 'H'. y is '171' in octal... so i'm not sure how or under what math '17' became a '9' It almost threw me for a loop when I was decoding the message. With the mix of octal and decimal and the upper/lower characters then suddenly a '[', I thought I'd done something wrong or was on the wrong track.
Posted: Fri Dec 12, 2008 6:42 pm
Hmm... I thought it was just a rule which we must detect. And maybe the expected answer to the first sentence is: "No, I wouldn't."MerickOWA wrote:i'm not sure how or under what math '17' became a '9'
Posted: Wed Dec 17, 2008 4:43 am
Yeah, it looks like it was intentional, unless it supposed to be 89
At one place there is 'Y' in octal (131), so not all 'Y' are miscalculated.
At one place there is 'Y' in octal (131), so not all 'Y' are miscalculated.
Posted: Wed Dec 17, 2008 7:48 pm
How were you inteded to find 8=>16 9=>17? I just tried through alot of possibilities
Posted: Thu Dec 18, 2008 12:46 am
I tried first slice the string in 3 chars array and then I saw that some are ok and some don't make sense. So I just manually split it into 3 or 2 char sequences and then if it has 8 or 9 it's dec otherwise it's octal. Most of it was decoded right away.
Posted: Sun Jul 19, 2009 9:34 am
The rule is maybe :
if value in [80...99] then value = value + 80
octdec(value)
Then there is no unwanted upper chars and no [
if value in [80...99] then value = value + 80
octdec(value)
Then there is no unwanted upper chars and no [
Posted: Sun Apr 04, 2010 5:06 pm
Oh I finally did it...
I tried a lot of nonsences but when I deleted all the eights from input and made groups of three octal digits, I got "If I ....(scrumbled text)... an efficien .... ... belie..." then i got lost, but finally I looked after belie I expected "ve" so I tried to somehow get that ... "v" finally I found, that every 8+ next number are decimal representations of letters
Final Y was very hard to me too, but I had solved it by looking to english dictionary where i found only one world starting with stropp
Uff... sorry for bad english.
Very nice and tricky challenge.
I tried a lot of nonsences but when I deleted all the eights from input and made groups of three octal digits, I got "If I ....(scrumbled text)... an efficien .... ... belie..." then i got lost, but finally I looked after belie I expected "ve" so I tried to somehow get that ... "v" finally I found, that every 8+ next number are decimal representations of letters
Final Y was very hard to me too, but I had solved it by looking to english dictionary where i found only one world starting with stropp Uff... sorry for bad english.
Very nice and tricky challenge.
Posted: Sun Nov 20, 2011 3:43 pm
Nice challenge, did it manually with the conversion panel of notepad++.
The Y ...
Posted: Sun Apr 12, 2015 8:06 pm
is probably intentional to force people to solve the whole thing in order to notice :D
This way you cant just test the start and solve the end.
This way you cant just test the start and solve the end.