제출 #39370

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런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 16, in <module>
    result = round(mean(difficulty[cut:length - cut]))
NameError: name 'mean' is not defined

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런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 16, in <module>
    result = round(mean(difficulty[cut:length - cut]))
NameError: name 'mean' is not defined

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런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 16, in <module>
    result = round(mean(difficulty[cut:length - cut]))
NameError: name 'mean' is not defined

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