回答編集履歴
2
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answer
CHANGED
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@@ -89,8 +89,8 @@
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89
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res1 = sorted(res1)
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90
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res2 = sorted(res2)
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res3 = sorted(res3)
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92
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-
assert(all([x==y for x,y in zip(
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92
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assert(all([x==y for x,y in zip(res1, res2)]))
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93
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-
assert(all([x==y for x,y in zip(
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assert(all([x==y for x,y in zip(res1, res3)]))
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94
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'''
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95
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------------------------------
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96
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[rev_hayataka2049_5 ] done in 0.184 s
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1
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answer
CHANGED
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@@ -17,4 +17,92 @@
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17
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result = [s+b+c for s in result] + [s+b+(c.upper())for s in result]
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b = ''
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c = next(iter_string)
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20
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if b != '':
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result = [s+b for s in result]
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```
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---
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25
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26
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測定。
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27
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strのjoinが遅い…ナゼ？？
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28
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29
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```python
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from contextlib import contextmanager
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import time
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import itertools
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string = "tera-tail"
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string_org = string
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rule = "te"
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38
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39
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def f_can110(string, rule):
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40
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pat = [(c,c.upper()) if c in rule else tuple(c) for c in string]
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l = [''.join(s) for s in itertools.product(*pat)]
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return l
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def f_hayataka2049(string, lst):
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result = [""]
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for c in string:
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if c in lst:
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48
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result = [s+c for s in result] + [s+(c.upper())for s in result]
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49
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else:
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50
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result = [s+c for s in result]
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return result
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52
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53
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def f_rev_hayataka2049(string, lst):
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54
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iter_string = iter(list(string) + [None])
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c = next(iter_string)
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b = ''
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result = ['']
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while c:
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if c not in lst:
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60
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b += c
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c = next(iter_string)
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else:
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63
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result = [s+b+c for s in result] + [s+b+(c.upper())for s in result]
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64
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b = ''
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65
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c = next(iter_string)
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66
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if b != '':
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result = [s+b for s in result]
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68
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return result
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69
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70
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@contextmanager
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71
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def timer(name):
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72
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t0 = time.time()
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yield
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print(f'[{name:20}] done in {time.time() - t0:.3f} s')
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75
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76
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string = string_org*5
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for i in range(5, 8):
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string = string+string_org
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print('-'*30)
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80
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with timer(f'rev_hayataka2049_{i}'):
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res1 = f_rev_hayataka2049(string, rule)
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82
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83
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with timer(f'can110_{i}'):
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84
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res2 = f_can110(string, rule)
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85
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86
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with timer(f'hayataka2049_{i}'):
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87
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res3 = f_hayataka2049(string, rule)
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88
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89
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res1 = sorted(res1)
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90
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res2 = sorted(res2)
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91
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res3 = sorted(res3)
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92
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assert(all([x==y for x,y in zip(res2, res2)]))
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93
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assert(all([x==y for x,y in zip(res3, res3)]))
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94
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'''
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95
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------------------------------
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96
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[rev_hayataka2049_5 ] done in 0.184 s
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97
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[can110_5 ] done in 0.225 s
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98
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[hayataka2049_5 ] done in 0.338 s
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99
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------------------------------
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100
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[rev_hayataka2049_6 ] done in 1.713 s
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101
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[can110_6 ] done in 2.289 s
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102
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[hayataka2049_6 ] done in 3.259 s
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103
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------------------------------
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104
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[rev_hayataka2049_7 ] done in 15.343 s
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105
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[can110_7 ] done in 20.240 s
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106
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[hayataka2049_7 ] done in 31.384 s
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107
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'''
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20
108
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```
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