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  1. #Сы Юйхао, 1032255367,НКАбд-04-25,6.3.26, 19:45
  2. #Найти сумму 1 - 1/3 + 1/5 - 1/7 + ... (N слагаемых)
  3. n=int(input("n:"))
  4. def sum(n):
  5.     s = 0.0
  6.     a = 1
  7.     b = 1
  8.     for _ in range(n):
  9.         s += a / b
  10.         a *= -1
  11.         b += 2
  12.     return s
  13. print(sum(n))
Success #stdin #stdout 2.45s 14040KB
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stdin
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20000000
stdout
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n:0.7853981508974542
https://ideone.com/unsBZT
10
language:
Python 3 (python  3.12)
created:
1 hour ago
visibility:
public

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