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Update insertion_sort.py

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Cleaner solution: shorter, less variables, straightforward logic.
This commit is contained in:
yyeltsyn 2016-09-05 10:08:04 +03:00 committed by GitHub
parent df271bf2d0
commit a681b24f69
1 changed files with 4 additions and 8 deletions
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12
sorts/insertion_sort.py
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@ -29,14 +29,10 @@ def insertion_sort(collection):
>>> insertion_sort([-2, -5, -45])
[-45, -5, -2]
"""
length = len(collection)
for i in range(length):
current_item = collection[i]
j = i - 1
while j >= 0 and current_item < collection[j]:
collection[j+1] = collection[j]
j -= 1
collection[j+1] = current_item
for index in range(1, len(collection)):
while 0 < index and collection[index] < collection[index-1]:
collection[index], collection[index-1] = collection[index-1], collection[index]
index -= 1
return collection