Ŀ

գҪıйص䡣
һ repeat (0<repeat<10) repeat 㣺
һ n 2/13/25/38/5ǰn֮ͣ2λС(дӵ2ÿһķǰһĸĺͣĸǰһķ)
ʾ˵

3        (repeat=3) 
1        (n=1) 
5        (n=5) 
20       (n=20) 

sum = 2.00   	(12.00)
sum = 8.39   	(ǰ5ĺ8.39)
sum = 32.66  	(ǰ20ĺ32.66)



#include <stdio.h>
int main(void)
{
    int i, n;
    int repeat, ri;
    double denominator, numerator, sum, temp;

    scanf("%d", &repeat);
    for(ri = 1; ri <= repeat; ri++){
        scanf("%d", &n);
/*---------*/
     	printf("sum = %.2f\n",sum);
   }
}