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  1. n = int(input())
  2. t = map(int,input().split())
  3. lst = sorted(t)
  4. if len(lst) == n:
  5. 	print(len(set(range(lst[0], lst[-1])) - set(lst)))
  6.  
Success #stdin #stdout 0.02s 9168KB
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https://ideone.com/IFJ79C
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
public

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