OptiPerl, the best IDE for Perl and best of any IDE I have ever seen. I quite often praise it for it's "Box & Line coding" which I haven't yet to see in any editor--even in Delphi
This is related to PHP's array .
An array has number of elements. All elements are integers and unique, which means there is no repetitive integers.
(e.g.) $foo = array(7, 5, 9, 13, 2, 8);
You have to sort the array, provided:
You should scan the elements only once. You're not allowed to compare the elements when sorting. (i.e., you're not supposed to use any comparison operators) Sorted resultant array may not be the source array.
How will you do that?
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