Python实现桶排序与快速排序算法结合应用示例

#-*- coding: UTF-8 -*-
import numpy as np
from QuickSort import QuickSort
def BucketSort(a, n):
  barrel = {}
  for i in xrange(0,n):
    barrel.setdefault(i, [])
  min = np.min(a)
  max = np.max(a)
  for x in a:
    for i in xrange(0,n-1):
      if x >= min +i* (max - min)/n and x = min +(i +1) * (max - min)/n:
        barrel[i+1].append(x)
  k = 0
  for i in xrange(0,n):
    if len(barrel[i]) != 0:
      arr = np.array(barrel[i])
      QuickSort(arr, 0, len(barrel[i]) -1)
      for x in arr:
        a[k] = x
        k += 1
if __name__ == '__main__':
  a = np.random.randint(0, 100, size = 10)
  print "Before sorting..."
  print "---------------------------------------------------------------"
  print a
  print "---------------------------------------------------------------"
  BucketSort(a, 10)
  print "After sorting..."
  print "---------------------------------------------------------------"
  print a
  print "---------------------------------------------------------------"

#-*- coding: UTF-8 -*-
import numpy as np
def Partition(a, i, j):
  x = a[i]                      #将数组的第一个元素作为初始基准位置
  p = i                        #同时记录下该元素的位置
  while i = x:
      j -= 1
    while i