Python函数练习:冒泡算法+快速排序(二分法)

冒泡算法:

#-*- coding: UTF-8 -*-
#冒泡排序

def func(lt):
if type(lt).__name__ !='list' and type(lt).__name__ !='tuple':
return
if type(lt).__name__ == 'tuple':
return list(lt)
for i in range(1,len(lt)-1):
     for j in range(1,len(lt)-i):
         if lt[j] > lt[j+1]:
         lt[j],lt[j+1] = lt[j+1],lt[j]
return lt


lt_01 = [2,34,5,14,7,28]
print func(lt_01)

=================================================

二分法:(通过函数递归调用实现)

def func(lt=[]):
    if type(lt).__name__ !='list' and type(lt).__name__!='tuple':
        return
    if type(lt).__name__ =='tuple':
        return list(lt)
    if len(lt)<=1:
        return lt
    k = lt[0]
    lt_l = []
    lt_r = []
    lt_m = []
    for i in lt:
        if i>k:
            lt_r.append(i)
        elif i<k:
            lt_l.append(i)
        else:
            lt_m.append(i)
    lt_l=func(lt_l)
    lt_r=func(lt_r)
    return lt_l + lt_m + lt_r


a = [2,4,12,6,23,16,28]
print func(a)

原文地址:https://www.cnblogs.com/dvbbs2012/p/5039683.html