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  1. class Range
  2. 	def coerce(n)
  3. 		[(first+n..last+n).to_a, []]
  4. 	end
  5. end
  6.  
  7. class Array
  8. 	def squared
  9. 		map{ |x| x**2 }
  10. 	end
  11.  
  12. 	def sum
  13. 		inject(0,&:+)
  14. 	end
  15. end
  16.  
  17. p (6 + (1..12)).squared.sum
Success #stdin #stdout 0s 6100KB
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2018
https://ideone.com/O2YmtL
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
secret

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