Created
January 7, 2010 08:37
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(サンプル問題 問題No:201) | |
■Q1.桁数の不明な整数xの各位の値を合計したものを返す関数を作りなさい。(例:x=123 の場合、1 + 2 + 3 = 6 となる) | |
われながらひどいこたえ | |
irb(main):012:0> def plus_each_integer(int) | |
irb(main):013:1> answer = 0 | |
irb(main):014:1> int.to_s.split(//).each{|byte| answer += byte.to_i} | |
irb(main):015:1> answer | |
irb(main):016:1> end | |
=> nil | |
irb(main):017:0> puts plus_each_integer(123) | |
6 | |
=> nil | |
irb(main):018:0> puts plus_each_integer(1234) | |
10 | |
=> nil |
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