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mikecmpbll/fact.rb

Last active August 29, 2015 14:20
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fact.rb
print "Enter an integer number to be calculated as factorial: "
Integer(gets) rescue print "Hey, that's not an integer! Enter an integer, please: "
n = gets.to_i
def factorial n
n > 1 ? n * factorial(n - 1) : 1
end
puts "Factorial of number #{n} is #{factorial(n)}"
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