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Re: weird array processing question

by Fletch (Chancellor)
on May 05, 2011 at 20:53 UTC ( #903240=note: print w/replies, xml ) Need Help??

in reply to weird array processing question

It almost sounds like you want something like this (warning: destructive to the array since it removes items off the beginning because they've already been compared):

my @array = ( 1, 2, 3, 4, 1, 2, 3 ); my $matches = 0; while( @array ) { my $candidate = shift @array; for( @array ) { $matches++ if $candidate == $_ } } print "Got $matches matches\n";

Update: I like toolic's approach below better as it solves the problem "does my list have more than three duplicates of any one element" without as many comparisons; original question was fuzzy so . . .

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[Corion]: marto: Hehe ;)
[marto]: my out of working hours time is very scarce at the moment
[marto]: unfortunately for you guys I can still access PM during the day :P
[Corion]: marto: Ow, I hope that gets better soonish! But I feel some $work-timecrunch looming at my $work as well
[Corion]: marto: Ah, so you can multiplex work and PM time ;-D
[Corion]: The upside to this is that I've reduced my $work (well, $paid) time to 80%, so I'll be at $work only four days/week, which will hopefully make the crunch less crunchy on me ;)
[marto]: yeah, so that stays as before. But before the boys were born I'd be on quite often at night (GMT) also
[marto]: I had the option during our TUPE transfer to buy 5 more days holiday. They were shocked when I did :P

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