计算竞彩足球注数

gistfile1.rb

# -*- coding: utf-8 -*-
# 竞彩注码算法
# 用例
# teams = [
#          [1, '3', '0', '*'],
#          [2, '3', '-'],
#          [3, '3', '-'],
#          [4, '3', '1', '*'],
#          [5, '3', '0', '*'],
#          [6, '3', '1', '-'],
#          [7, '3', '0', '*'],
#         ]
# betsum = CalContestBetsum play_kind: '5*6', teams: teams
# puts "注数为#{betsum}"
class CalContestBetsum < Dun::Land

  data_reader :play_kind, :teams

  attr_reader :single_checkpoints, :betsum

  # 1*1 表示单关
  BET_TABLE = {
    '1*1'=>[1],
    '2*1'=>[2], '2*3'=>[2, 1],
    '3*1'=>[3], '3*3'=>[2], '3*4'=>[2,3], '3*7'=>[3, 2, 1],
    '4*1'=>[4], '4*4'=>[3], '4*5'=>[4,3], '4*6'=>[2],'4*11'=>[4,3,3], '4*15'=>[4, 3, 2, 1],
    '5*1'=>[5], '5*5'=>[4], '5*6'=>[5, 4], '5*10'=>[2], '5*16'=>[5, 4, 3], '5*20'=>[3, 2], '5*26'=>[5, 4, 3, 2], '5*31'=>[5, 4, 3, 2, 1],
    '6*1'=>[6],  '6*6'=>[5],'6*7'=>[6, 5],'6*15'=>[2], '6*20'=>[3], '6*22'=>[6, 5, 4],
    '6*35'=>[3,2],'6*42'=>[6, 5, 4, 3], '6*50'=>[4, 3, 2],'6*57'=>[6, 5, 4, 3, 2], '6*63'=>[6, 5, 4, 3, 2, 1],
    '7*1'=>[7],'7*7'=>[6],'7*8'=>[7,6],'7*21'=>[5],'7*35'=>[4],'7*120'=>[7,6,5,4,3,2],
    '8*1'=>[8], '8*8'=>[7],'8*9'=>[8,7],'8*28'=>[6],'8*56'=>[5],'8*70'=>[4],'8*247'=>[8,7,6,5,4,3,2],
    '9*1'=>[9],
    '10*1'=>[10],
    '11*1'=>[11],
    '12*1'=>[12],
    '13*1'=>[13],
    '14*1'=>[14],
    '15*1'=>[15]
  }

  def initialize data
    super data
    @single_checkpoints = split_to_signle_checkpoints
  end

  def split_to_signle_checkpoints
    single_checkpoints = []
    teams.each {|team|
      team[1..-2].uniq.each {|st|
        single_checkpoints << [team[0], st]
      }
    }
    single_checkpoints
  end


  # 将数组teams拆分成包含有num个元素的组合
  # Params
  #
  #    num   - 拆分后的组合中含有的元素个数
  #    teams - 从此集合中取num个元素进行组合
  #
  # Example:
  #    # [[[1,3],[2,3]], [[1,3],[3,3]], [[1,3],[4,3]],[[2,3],[3,3]], [[2,3],[4,3]], [[3,3],[4,3]]]
  #    comb(2, [[1, 3], [2, 3], [3, 3], [4, 3]])
  #
  def check_points_combination(num)
    single_checkpoints.combination(num).to_a.delete_if {|checkpoint|
      cf = checkpoint.map {|cp| cp[0] }
      cf.size > cf.uniq.size
    }
  end

  def call
    @betsum = BET_TABLE[play_kind].inject(0){|betsum, num|
      betsum + check_points_combination(num).uniq.length
    }
  end

end

O_o 这是Ruby 写的吗？撸主有没有其他语言版本的？

ruby写的，没有其他语言版本