12 lines
		
	
	
		
			103 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			103 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| def fact(n)
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|   if n == 0
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|   then
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|   	1
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|   else
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|   	n * fact(n-1)
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|   end
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| end
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| 
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| puts fact(5)
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| puts "Hello World"
 | 
