Hi, On 09/24/2013 12:17 AM, David Christensen wrote: > beginners: > > H() is the hash function
as you want the same hash of a substring regardless of the position, I think you cannot make the hash dependent on the position of each character in the string. A simple solution could be to add the number value of each character. This would fullfill H(string1 . string2) = H(string1) + H(string2) I am not sure if the modulo operator also fulfils (a % b) % c = (a % c) % (b % c) In that case you could also use the modulo on your hash function. > > string1 is a string > > string2 is a string > > . is the string concatenation operator > > f() is a function > > op is a binary operator > > > Any suggestions? > > > TIA, > > David > > -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
