题解 | #牛牛学数列2#
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba
n=int(input())
sum=0
if n==0:
print(0)
else:
for i in range(1,n+1):
sum+=1/i
sum=sum
print(f"{sum:.6f}")
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba
n=int(input())
sum=0
if n==0:
print(0)
else:
for i in range(1,n+1):
sum+=1/i
sum=sum
print(f"{sum:.6f}")
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