佐賀Groovy勉強会 - 演習１：小町算

komachi.groovy

import groovyx.gpars.GParsPool

GParsPool.withPool {
  def array = ["+", "-", "*", "/"]
  def combi =  GroovyCollections.combinations((1..2).collectParallel{ array }) // arrayから2つ選びだす順列
  println combi //=> [[1, 1], [2, 1], [3, 1], [1, 2], [2, 2], [3, 2], [1, 3], [2, 3], [3, 3]]

  combi.each {
    def s = "1"
    def i = 2
    it.each {
      s += it + (i++)
    }
    //println s
    def eval = new Eval()
    eval.me("if (" + s + " == 6) println \"" + s + "\"") // evaluation! と表示する
  }
}