题解 | 牛牛学数列2
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba
n=int(input())
def sum(n):
if n==1:
return 1
else:
return sum(n-1)+1/n
print(f'{sum(n):.6f}')
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba
n=int(input())
def sum(n):
if n==1:
return 1
else:
return sum(n-1)+1/n
print(f'{sum(n):.6f}')
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