回答編集履歴
2
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test
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@@ -180,9 +180,9 @@
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res3 = sorted(res3)
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assert(all([x==y for x,y in zip(res
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assert(all([x==y for x,y in zip(res1, res2)]))
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assert(all([x==y for x,y in zip(res
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assert(all([x==y for x,y in zip(res1, res3)]))
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'''
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test
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@@ -36,4 +36,180 @@
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c = next(iter_string)
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if b != '':
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40
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result = [s+b for s in result]
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```
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---
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48
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49
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50
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51
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測定。
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52
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53
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strのjoinが遅い…ナゼ？？
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54
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```python
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58
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59
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from contextlib import contextmanager
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60
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61
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62
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63
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import time
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65
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import itertools
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66
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67
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68
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string = "tera-tail"
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70
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string_org = string
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rule = "te"
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77
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def f_can110(string, rule):
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78
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79
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pat = [(c,c.upper()) if c in rule else tuple(c) for c in string]
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80
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81
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l = [''.join(s) for s in itertools.product(*pat)]
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82
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return l
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87
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def f_hayataka2049(string, lst):
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88
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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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result = [s+c for s in result] + [s+(c.upper())for s in result]
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else:
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result = [s+c for s in result]
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return result
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def f_rev_hayataka2049(string, lst):
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106
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iter_string = iter(list(string) + [None])
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c = next(iter_string)
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111
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b = ''
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result = ['']
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115
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while c:
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if c not in lst:
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b += c
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c = next(iter_string)
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else:
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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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128
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c = next(iter_string)
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130
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131
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if b != '':
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result = [s+b for s in result]
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return result
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137
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@contextmanager
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141
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def timer(name):
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142
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t0 = time.time()
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yield
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146
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print(f'[{name:20}] done in {time.time() - t0:.3f} s')
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149
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150
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string = string_org*5
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152
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153
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for i in range(5, 8):
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154
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string = string+string_org
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156
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157
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print('-'*30)
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158
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159
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with timer(f'rev_hayataka2049_{i}'):
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160
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161
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res1 = f_rev_hayataka2049(string, rule)
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162
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163
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164
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165
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with timer(f'can110_{i}'):
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166
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167
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res2 = f_can110(string, rule)
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168
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169
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170
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171
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with timer(f'hayataka2049_{i}'):
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172
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173
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res3 = f_hayataka2049(string, rule)
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174
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175
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176
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177
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res1 = sorted(res1)
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178
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179
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res2 = sorted(res2)
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180
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181
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res3 = sorted(res3)
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182
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183
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assert(all([x==y for x,y in zip(res2, res2)]))
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184
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185
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assert(all([x==y for x,y in zip(res3, res3)]))
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186
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187
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'''
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188
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189
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------------------------------
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190
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191
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[rev_hayataka2049_5 ] done in 0.184 s
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192
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193
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[can110_5 ] done in 0.225 s
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194
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195
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[hayataka2049_5 ] done in 0.338 s
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196
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197
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------------------------------
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198
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199
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[rev_hayataka2049_6 ] done in 1.713 s
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200
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201
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[can110_6 ] done in 2.289 s
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202
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203
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[hayataka2049_6 ] done in 3.259 s
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204
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205
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------------------------------
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206
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207
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[rev_hayataka2049_7 ] done in 15.343 s
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208
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209
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[can110_7 ] done in 20.240 s
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210
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211
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[hayataka2049_7 ] done in 31.384 s
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212
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213
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'''
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214
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215
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+
```
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