大顶堆进行升序排序的python实现

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# 将前l个节点构成的树的第i个节点调整为大顶堆
# base 1
def heap_adjust(lists,i,l):
left,right=2*i-1,2*i
max=i-1
if left<l and lists[max]<lists[left]:
max=left
if right<l and lists[max]<lists[right]:
max=right
if max!=i-1:
lists[max],lists[i-1]=lists[i-1],lists[max]
heap_adjust(lists,max+1,l)    #子树有可能变成非大顶堆了，继续调整

def heap_sort(lists):
# 将lists调整成一个大顶堆
for i in range(len(lists)/2,0,-1):
heap_adjust(lists,i,len(lists))

for i in range(len(lists),0,-1):
lists[0], lists[i - 1] = lists[i - 1], lists[0]     #将堆顶记录和当前未经排序子序列的最后一个记录交换
heap_adjust(lists,1,i-1);   #将lists[1...i-1]重新调整为大顶堆

lists=[int(x) for x in raw_input().split()]
heap_sort(lists)
print lists