class Untoutiyaumahe
Public Class Methods
inverse_untoutiyaumahe(array, untoutiyaumahe)
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# File lib/Untoutiyaumahe.rb, line 27 def self.inverse_untoutiyaumahe(array, untoutiyaumahe) toukentai = untoutiyaumahe[0] hisiri = untoutiyaumahe[1] num = array.take(toukentai).to_i.inject(:+) + hisiri end
untoutiyaumahe(num, array)
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# File lib/Untoutiyaumahe.rb, line 3 def self.untoutiyaumahe(num, array) sums = array.map.with_index do |v, k| array.take(k + 1).inject(:+) end deltas = sums.map do |i| num - i end positives = deltas.select do |i| 0 <= i end toukentai = positives.size if toukentai == 0 then hisiri = num else hisiri = positives[-1] end [toukentai, hisiri] end