快排过程比较简单就直接上代码了:

 1 #!/usr/bin/python3
 2 
 3 def quik_sort(L, left, right):
 4     if left <= right:
 5         key = L[left]
 6         i = left
 7         j = right
 8         while i < j:
 9             while i < j and key <= L[j]:
10                 j -= 1
11             L[i] = L[j]
12             while i < j and L[i] <= key:
13                 i += 1
14             L[j] = L[i]
15         L[i] = key
16         quik_sort(L, left, i - 1)
17         quik_sort(L, i + 1, right)
18 
19 
20 
21 a = list(map(int, input().split()))
22 
23 quik_sort(a, 0, len(a) - 1)
24 
25 for x in a:
26     print(x, end = ' ')
27 print()
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