Re: Find number of unique values in hash

my $i;
for (values %hoh) {
    $_->{age} == 12 && $i++;
}
[download]

PS: ah, you want to do it "without looping through each hash and counting." No, I don't think that's possible.

Comment on Re: Find number of unique values in hash Download Code

Replies are listed 'Best First'.
Re^2: Find number of unique values in hash by AnomalousMonk (Archbishop) on Jan 19, 2010 at 23:26 UTC
rethaew want[s] to do it "without looping through each hash and counting." No, I don't think that's possible. I agree. Even a solution like `my $age12 = grep $_->{age} == 12, values %hoh;` implicitly loops through the hash. rethaew will have to wait for the arrival of the personal desktop quantum computer to solve the problem without looping.	[reply] [d/l]