b.rb

ntys (ding ding), 12/04/2009 07:56 pm

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#This program doesn't work with "ruby 1.9.1p129 (2009-05-12 revision 23412) [i386-mswin32]"
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#But it's OK with "ruby 1.9.1p0"
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f=lambda{|x|


    		
  

  

  

    
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    return 1 if x<=1


    		
  

  

  

    
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    f[x-1]*x


    		
  

  

  

    
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  }


    		
  

  

  

    
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puts f[1000]


    		
  

  

  

    
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END {


    		
  

  

  

    
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    puts 'Now Exiting'       #This won't be excuted.And NO Error Message will be printed out, either.


    		
  

  

  

    
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}