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() {
int n,i=1;
double s = 0;
scanf("%d", &n);
while (i <= n) {
s = s +1.0/i;
i++;
}
printf("%.6lf", s);
return 0;
}
