***Description
Computing series using the following formula:
m(n)=1/2+2/3+…+n/n+1
Input
A positive integer n (1 <= n <= 10000)
Output
Series computing by n
(The precision of series should be fixed to 4)
Sample Input
3
Sample Output
1.9167***
// Date:2020/3/28
// Author:xiezhg5
#include <stdio.h>
int main(void)
{
int n;
int i,a,b;
float sum=0;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
a=i;
b=a+1;
sum=sum+1.0*a/b;
}
printf("%.4f\n",sum);
return 0;
}
Only float type can be used to define sum, and double can cause the following situations:
