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选择排序 #41

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@Geekhyt

Description

@Geekhyt

选择排序可视化视频

选择排序和插入排序有些类似,也分已排序序列和未排序序列。

但是选择排序是将最小的元素存放在数组起始位置,再从剩下的未排序的序列中寻找最小的元素,然后将其放到已排序的序列后面。以此类推,直到排序完成。

constselectSort=function(arr){constlen=arr.lengthlettemp,minIndexfor(leti=0;i<len-1;i++){minIndex=ifor(letj=i+1;j<len;j++){if(arr[j]<=arr[minIndex]){minIndex=j}}temp=arr[i]arr[i]=arr[minIndex]arr[minIndex]=temp}returnarr}
  • 时间复杂度: O(n^2)
  • 空间复杂度: O(1)
  • 不稳定

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