427265616B2074686520636F646500 (in Contests)


AdminG Beee January 14 2006 5:32 PM EST

5768696368206F662074686520666F6C6C6F77696E6720697320746865206F6464206F6E65206F75743F00

4375626500
53717561726500
53706865726500
43796C696E64657200
4F637461686564726F6E00

A Katana [74x25] (+25) NW $833k & A Compound Bow [5x45] (+25) NW $2.3m from my admin char for correct answer.

Ox [StephenMelinda Gates Fund] January 14 2006 5:39 PM EST

I believe this is the odd one out.

53717561726500

since it is a square

flamewind January 14 2006 5:39 PM EST

53717561726500 , or a square?

bartjan January 14 2006 5:45 PM EST

Square. The only 2D one.

Ox [StephenMelinda Gates Fund] January 14 2006 5:45 PM EST

Thanks G_Beee! :)

AdminG Beee January 14 2006 5:49 PM EST

G Beee (Admin_Beee) Oxtetor (Riffwraith) A Katana ($832935) -- see /bboard..001fbr
G Beee (Admin_Beee) Oxtetor (Riffwraith) A Compound Bow ($2309819) -- see /bboard..001fbr

Congrats, that was nice and fast.

--

Thread title was: Break the code

Which of the following is the odd one out?

Cube
Square
Sphere
Cylinder
Octahedron

Indeed the answer is "Square" given that a square is two-dimensional, the others are three-dimensional.

Halcyon January 15 2006 3:37 AM EST

Ok, I'm lost ... totally.

Doom Lit Sky January 15 2006 3:50 AM EST

How does


427265616B2074686520636F646500


=

Break the code?

I'm seriously interested. I'm not in college yet, and none of this was in any of my highschool math classes (I'm a Senior)

Could someone explain in a way I could actually understand though?

Thanks.

bartjan January 15 2006 3:58 AM EST

Those strings are hexadecimal numbers (decimal numbers go from 0 to 9, hexadecimal numbers have 16 values, and go from 0 to F). When split into groups of 2 characters, you can read them as a string of bytes (a byte can have a value between 0 and 255. 16x16=256).
ASCII is a very common system for encoding letters into bytes. The ASCII table assigns each value between 0 and 127 a letter or other symbol. The letter A for example has the value 65 (41 in hexadecimal), B=66, Z=90, a=97 and so on).

Halcyon January 15 2006 4:28 AM EST

Do you have a url in which I could actually begin to fully understand?

bartjan January 15 2006 4:31 AM EST

Try wikipedia, ASCII and hexadecimal are good keywords.

AdminG Beee January 15 2006 4:32 AM EST

You could visit here for the encoder I used.

Sukotto [lookingglas] January 15 2006 12:05 PM EST

Valiek, look here for an ascii table

Take one of the sets of numbers like 4375626500. Breaking it up into sets of two and checking them against the table gives us
43 C
75 u
62 b
65 e
00 NULL
(Notice that every line -- "string" -- of characters ends with 00, the code for NULL. NULL is used in some kinds of computer programming indicate the end of a string of characters and in this case, it's a clue to use Hex encoding instead of something else)

So, 4375626500 means "Cube". Using the same method you can convert all the other characters.

If you're interested in studying computer science (or game programming for that matter) I encourage you to become familar with the ascii table, as well as a few other things like the powers of 2, and converting numbers between Decimal (what we use every day in real life), Hex, Octal, and Binary.

Bootsanator January 15 2006 5:34 PM EST

remember Y2K? 00 killing the world? good times...

AdminQBGentlemanLoser [{END}] January 16 2006 10:23 AM EST

"You could visit here for the encoder I used. "

Bahh! That's tantamount to cheating! You should have encoded it manually! ;)

:P
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