题解 | #牛牛学数列2#
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba
#include <stdio.h>
int main() {
double n=0,i=0,sum=0;
scanf("%lf",&n);
for(i=1;i<=n;i++)
{
sum=sum+1.0/i;
}
printf("%.6lf\n",sum);
return 0;
}
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