对Ruby中的数组使用冒泡排序方法 [英] Using the Bubble sort method for an array in Ruby

问题描述

我正在尝试将Bubble排序方法实现为Ruby的一个简单编码问题，但遇到了一些麻烦。我了解的想法是先查看第一个元素的值，然后将其与第二个元素的值进行比较，然后相应地交换它们，但我似乎无法在实际问题中做到这一点。有人愿意提供一个简短的示例说明如何在Ruby中工作吗？

I'm trying to implement the Bubble sort method into an easy coding problem for Ruby, but I'm having some trouble. I understand the idea is to look at the value of the first element and compare it to the value of the second element and then swap them accordingly, but I can't seem to do it in an actual problem. Would anyone be willing to provide a brief example of how this might work in Ruby?

推荐答案

使用a正确的气泡排序实现while循环

Correct implementation of the bubble sort with a while loop

def bubble_sort(list)
  return list if list.size <= 1 # already sorted
  swapped = true
  while swapped do
    swapped = false
    0.upto(list.size-2) do |i|
      if list[i] > list[i+1]
        list[i], list[i+1] = list[i+1], list[i] # swap values
        swapped = true
      end
    end    
  end

  list
end

这篇关于对Ruby中的数组使用冒泡排序方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！