random_selection chooses $$n items at random from a random access iterator range which is useful to produce degenerate input data sets with multiple entries of identical items.
#include <CGAL/random_selection.h>
 

 
chooses a random item from the range $$[first,last) and
writes it to result, each item from the range with equal
probability, and repeats this $$n times, thus writing $$n items to
result.
A single random number is needed from rnd for each item.
Returns the value of result after inserting the $$n items.
