1 Insertion Sort - 插入排序
2 插入排序算法的 '时间复杂度' 是输入规模的二次函数, 深度抽象后表示为, n 的二次方.
3
4 import time, random
5 F = 0
6 alist = []
7 while F < 13:
8 F += 1
9 alist.append(random.randrange(0,100))
10 j =1
11 print("List-O",alist)
12 startT =time.time()
13 while j < alist.__len__():
14 factor = alist[j]
15 j += 1
16 print("-",factor)
17 i = j -1
18 while i > 0:
19 i -= 1
20 if alist[i] > factor:
21 alist[i],alist[i+1] = alist[i+1],alist[i]
22 print("Steps", alist)
23 endT = time.time()
24 print("List-S", alist)
25 print("Time elapsed :", endT - startT)
26
27 Output,
28 List-O [67, 22, 94, 33, 81, 92, 65, 94, 56, 10, 55, 5, 64]
29 - 22
30 Steps [22, 67, 94, 33, 81, 92, 65, 94, 56, 10, 55, 5, 64]
31 - 94
32 Steps [22, 67, 94, 33, 81, 92, 65, 94, 56, 10, 55, 5, 64]
33 Steps [22, 67, 94, 33, 81, 92, 65, 94, 56, 10, 55, 5, 64]
34 - 33
35 Steps [22, 67, 33, 94, 81, 92, 65, 94, 56, 10, 55, 5, 64]
36 Steps [22, 33, 67, 94, 81, 92, 65, 94, 56, 10, 55, 5, 64]
37 Steps [22, 33, 67, 94, 81, 92, 65, 94, 56, 10, 55, 5, 64]
38 - 81
39 Steps [22, 33, 67, 81, 94, 92, 65, 94, 56, 10, 55, 5, 64]
40 Steps [22, 33, 67, 81, 94, 92, 65, 94, 56, 10, 55, 5, 64]
41 Steps [22, 33, 67, 81, 94, 92, 65, 94, 56, 10, 55, 5, 64]
42 Steps [22, 33, 67, 81, 94, 92, 65, 94, 56, 10, 55, 5, 64]
43 - 92
44 Steps [22, 33, 67, 81, 92, 94, 65, 94, 56, 10, 55, 5, 64]
45 Steps [22, 33, 67, 81, 92, 94, 65, 94, 56, 10, 55, 5, 64]
46 Steps [22, 33, 67, 81, 92, 94, 65, 94, 56, 10, 55, 5, 64]
47 Steps [22, 33, 67, 81, 92, 94, 65, 94, 56, 10, 55, 5, 64]
48 Steps [22, 33, 67, 81, 92, 94, 65, 94, 56, 10, 55, 5, 64]
49 - 65
50 Steps [22, 33, 67, 81, 92, 65, 94, 94, 56, 10, 55, 5, 64]
51 Steps [22, 33, 67, 81, 65, 92, 94, 94, 56, 10, 55, 5, 64]
52 Steps [22, 33, 67, 65, 81, 92, 94, 94, 56, 10, 55, 5, 64]
53 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
54 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
55 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
56 - 94
57 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
58 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
59 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
60 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
61 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
62 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
63 Steps [22, 33, 65, 67, 81, 92, 94, 94, 56, 10, 55, 5, 64]
64 - 56
65 Steps [22, 33, 65, 67, 81, 92, 94, 56, 94, 10, 55, 5, 64]
66 Steps [22, 33, 65, 67, 81, 92, 56, 94, 94, 10, 55, 5, 64]
67 Steps [22, 33, 65, 67, 81, 56, 92, 94, 94, 10, 55, 5, 64]
68 Steps [22, 33, 65, 67, 56, 81, 92, 94, 94, 10, 55, 5, 64]
69 Steps [22, 33, 65, 56, 67, 81, 92, 94, 94, 10, 55, 5, 64]
70 Steps [22, 33, 56, 65, 67, 81, 92, 94, 94, 10, 55, 5, 64]
71 Steps [22, 33, 56, 65, 67, 81, 92, 94, 94, 10, 55, 5, 64]
72 Steps [22, 33, 56, 65, 67, 81, 92, 94, 94, 10, 55, 5, 64]
73 - 10
74 Steps [22, 33, 56, 65, 67, 81, 92, 94, 10, 94, 55, 5, 64]
75 Steps [22, 33, 56, 65, 67, 81, 92, 10, 94, 94, 55, 5, 64]
76 Steps [22, 33, 56, 65, 67, 81, 10, 92, 94, 94, 55, 5, 64]
77 Steps [22, 33, 56, 65, 67, 10, 81, 92, 94, 94, 55, 5, 64]
78 Steps [22, 33, 56, 65, 10, 67, 81, 92, 94, 94, 55, 5, 64]
79 Steps [22, 33, 56, 10, 65, 67, 81, 92, 94, 94, 55, 5, 64]
80 Steps [22, 33, 10, 56, 65, 67, 81, 92, 94, 94, 55, 5, 64]
81 Steps [22, 10, 33, 56, 65, 67, 81, 92, 94, 94, 55, 5, 64]
82 Steps [10, 22, 33, 56, 65, 67, 81, 92, 94, 94, 55, 5, 64]
83 - 55
84 Steps [10, 22, 33, 56, 65, 67, 81, 92, 94, 55, 94, 5, 64]
85 Steps [10, 22, 33, 56, 65, 67, 81, 92, 55, 94, 94, 5, 64]
86 Steps [10, 22, 33, 56, 65, 67, 81, 55, 92, 94, 94, 5, 64]
87 Steps [10, 22, 33, 56, 65, 67, 55, 81, 92, 94, 94, 5, 64]
88 Steps [10, 22, 33, 56, 65, 55, 67, 81, 92, 94, 94, 5, 64]
89 Steps [10, 22, 33, 56, 55, 65, 67, 81, 92, 94, 94, 5, 64]
90 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 5, 64]
91 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 5, 64]
92 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 5, 64]
93 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 5, 64]
94 - 5
95 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 5, 94, 64]
96 Steps [10, 22, 33, 55, 56, 65, 67, 81, 92, 5, 94, 94, 64]
97 Steps [10, 22, 33, 55, 56, 65, 67, 81, 5, 92, 94, 94, 64]
98 Steps [10, 22, 33, 55, 56, 65, 67, 5, 81, 92, 94, 94, 64]
99 Steps [10, 22, 33, 55, 56, 65, 5, 67, 81, 92, 94, 94, 64]
100 Steps [10, 22, 33, 55, 56, 5, 65, 67, 81, 92, 94, 94, 64]
101 Steps [10, 22, 33, 55, 5, 56, 65, 67, 81, 92, 94, 94, 64]
102 Steps [10, 22, 33, 5, 55, 56, 65, 67, 81, 92, 94, 94, 64]
103 Steps [10, 22, 5, 33, 55, 56, 65, 67, 81, 92, 94, 94, 64]
104 Steps [10, 5, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 64]
105 Steps [5, 10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 94, 64]
106 - 64
107 Steps [5, 10, 22, 33, 55, 56, 65, 67, 81, 92, 94, 64, 94]
108 Steps [5, 10, 22, 33, 55, 56, 65, 67, 81, 92, 64, 94, 94]
109 Steps [5, 10, 22, 33, 55, 56, 65, 67, 81, 64, 92, 94, 94]
110 Steps [5, 10, 22, 33, 55, 56, 65, 67, 64, 81, 92, 94, 94]
111 Steps [5, 10, 22, 33, 55, 56, 65, 64, 67, 81, 92, 94, 94]
112 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
113 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
114 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
115 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
116 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
117 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
118 Steps [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
119 List-S [5, 10, 22, 33, 55, 56, 64, 65, 67, 81, 92, 94, 94]
120 Time elapsed : 0.015672683715820312
121
