python插入排序算法实例分析

本文实例讲述了python插入排序算法。分享给大家供大家参考。具体如下:

def insertsort(array):
for removed_index in range(1, len(array)):
removed_value = array[removed_index]
insert_index = removed_index
while insert_index > 0 and array[insert_index – 1] > removed_value:
array[insert_index] = array[insert_index – 1]
insert_index -= 1
array[insert_index] = removed_value

另外一个版本:

def insertsort(array):
for lastsortedelement in range(len(array)-1):
checked = lastsortedelement
while array[checked] > array[lastsortedelement + 1] and checked >= 0:
checked -= 1
#insert the number into the correct position
array[checked+1], array[checked+2 : lastsortedelement+2] = array[lastsortedelement+1], array[checked+1 : lastsortedelement+1]
return array

希望本文所述对大家的python程序设计有所帮助。

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