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bkleinen/Next Random Student

Created October 8, 2013 13:27
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Random numbers for IMI Project Assignment.
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Next Random Student
Fire up irb and copy those two lines:
number_of_students=19
s = Set.new; n = 0 ; s << 0
Then repeatedly call this to get the next student:
while (s.include? n) do n = rand(number_of_students)+1 end ; s << n ; puts s.inspect ; n
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