Here are mine,
Update : since I didn't understand anyone elses (give or take) I've added explanations to mine
The first is obvious (51 chars)
The second is stated in a couple different ways (43 chars, 50 chars obfu'd)
sub obvious{
# (explained : count from zero until Z, return the current count if w
+e found the position we are looking for)
# 1 2 3 4 5 6
#23456789012345678901234567890123456789012345678901234567890
$n=pop;for(;$n ne((0..9),(A..Z))[$a];$a++){}"$a"0;
}
This one is more fun, it uses bitwise arithmatic to get the solution. The commented line is the same as the first, but more obfu
sub fun {
# (explained : reduce the numbers to their base2 (binary)
# representation. we always care about the
# lowest four bits ($n & 0x1111 is $n & 15). If the ord of
# the number is in the AZ range the 7th bit will be set
# ($n >> 6) will be true. In this case, also include the
# 6th bit in the number ($n & 31) instead of ($n & 15).
# Since AZ starts at ten, add 9 as well)
# 1 2 3 4 5 6
#23456789012345678901234567890123456789012345678901234567890
$n=ord(pop);$a=($n>>6)?(($n&31)+9):($n&15);
# same thing, but obfu
# $n=ord(pop);$a=($n&(1<<(4+($n>>6)))1)+($n>>6&&9);
}
Enjoy, or not, at your leisure.
jackdied
PS, posting with mozilla is the biggest pain in the ass ever. It tries to do smart things with wrapping in a text box, and translating spaces and returns for you with some AI that makes posting code hell.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
 a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Outside of code tags, you may need to use entities for some characters:

For: 

Use: 
 &   & 
 <   < 
 >   > 
 [   [ 
 ]   ] 
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.

