Mine... I think I am starting to love mathematical process of permutations, variations and pseudo-languages I hope i will gather more info and that i will study that more in near future!

(03-31-2010 04:28 AM)l3g1sl4tor Wrote:  Mine... I think I am starting to love mathematical process of permutations, variations and pseudo-languages I hope i will gather more info and that i will study that more in near future!

Yeah Combinatorics, you can find about it here:
http://en.wikipedia.org/wiki/Combinatorics

I like that part of maths too. Permutations, variations and combinations are really cool. Every programmer should know that.
@l3g1sl4tor I think that you are going to learn that in 4th grade second semester of high school (at the end).
BTW I made one program for permutations using recursion here :
http://www.pro9ramming.com/permutations-...t-169.html
XIO-X2 told me that algorithm few years ago !!!

Ok pozhx, no worries I was just a little confused.

4 points for hashes.
* it is easy to compute the hash value for any given message,
* it is infeasible to find a message that has a given hash,
* it is infeasible to modify a message without changing its hash,
* it is infeasible to find two different messages with the same hash.

Best quote ever is "if in doubt...flat out." - colin mcrae.

Interesting, I was working similar task, now, when i got prepared for competitions... I done both permutations and variations, but, I also got algorithm from professor That sources stayed on school PC, so I dont have it to post them here