What's a slick way to enumerate all subarrays of length n from a master
array of length m? For example I've been enumerating all possible two
card hands from a deck of 52 cards (n=2, m<=52) using nested for loops:
for ( $i = 0 ; $i < $#deck ; $i++ ) {
for ( $j = $i+1 ; $j <= $#deck ; $j++ ) {
someMethod( $deck[$i] , $deck[$j] )
}
}
How do I clean this up and generalize it to larger hands (longer
subarrays).
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