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### Re: (GOLF) combine N arrays

by jynx (Priest)
 on Apr 16, 2002 at 21:22 UTC ( #159629=note: print w/ replies, xml ) Need Help??

in reply to (GOLF) combine N arrays

Without looking at others solutions,

Here's the best i can come up with. It's got a hack or two, but it seems to test out correctly. *sigh*, i am learning from the TPR challenges that i am not very good at golf, but it's still fun :)

enjoy,
jynx

```sub combinations {
#58+58=116
#23456789_123456789_123456789_123456789_123456789_123456789_
my@a;\$;=@{\$_[0]}**@_;while(\$a=pop){\$==0;for\$a((@\$a)x(\$;>>(
\$b=@\$a**@_)||1)){push@{\$a[\$=++]},\$a for+1..\$b}}@a[0..\$;-1]
}
update: *sigh* back to the drawing board, the above version doesn't deal with multiple array lengths. The following does, but it's much longer...
```sub attempt2 {
#66+65=131
#23456789_123456789_123456789_123456789_123456789_123456789_123456789_
my%a;\$-=(@_=sort{@\$b<=>@\$a}@_);\$;=1;map\$;*=@\$_,@_;while(\$a=pop){\$=
=0;for\$a((@\$a)x(\$;/@\$a)){push@{\$a{\$=++}},\$a}}grep\$-==@\$_,values%a
}

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