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Re: Difficulty in randomization

by kejohm (Hermit)
on Mar 04, 2012 at 21:41 UTC ( #957816=note: print w/ replies, xml ) Need Help??


in reply to Difficulty in randomization

Instead of using if in your loop, you can use a do {...} while loop, eg:

my @array; for ( 1 .. 10 ) { my $random_number; do { $random_number = rand 600; } while $array[$random_number] eq 'X'; $array[$random_number] = 'X'; }

Here we generate a random number inside the loop and check whether the element at that position has been assigned 'X'. If it is, we try again. Otherwise, we assign 'X' to the selected element.


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