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  1. def sqr_digit_sum(n)
  2.   sum = 0
  3.   square = (n ** 2).to_s
  4.   square.each_char { |c| sum += c.to_i }
  5.   puts sum
  6. end
  7.  
  8. sqr_digit_sum(9)
Success #stdin #stdout 0.01s 7452KB
comments (?)
stdin 
Standard input is empty
stdout 
9
https://ideone.com/YnOmyG
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
secret

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