本文通过实例代码给大家详细介绍了python 二分查找和快速排序,的相关知识，需要的朋友可以参考下
思想简单，细节颇多；本以为很简单的两个小程序，写起来发现bug频出，留此纪念。
#usr/bin/env python
def binary_search(lst,t):
low=0
height=len(lst)-1
quicksort(lst,0,height)
print lst
while low<=height:
mid = (low+height)/2
if lst[mid] == t:
return lst[mid]
elif lst[mid]>t:
height=mid-1
else:
low=mid+1
return -1
def quicksort( lst, left , right):
low=left
high=right
key=lst[left]
if left>=right:
return 0
while low<high:
while low<high and key<lst[high]:
high=high-1
lst[low]=lst[high]
while low<high and key>lst[low]:
print lst[low]
low=low+1
lst[high]=lst[low]
lst[low]=key
quicksort( lst , left ,low-1)
quicksort( lst , low+1 , right)
if __name__=='__main__':
print binary_search([4,8,1,5,10,2,12,3,6,9],4)总结
以上是python实现二分查找与快速排序实例详解的详细内容。更多信息请关注PHP中文网其他相关文章！
