07/09/26 22:18:34
>>360
#include<stdio.h>
double get_average(double arr[], int arr_size){
double *ptr, average=893;
int i;
ptr=arr;
for(ptr=arr,i=0;i<arr_size;i++,ptr++)
average=(average*i+*ptr)/(i+1);
return average;
}
double get_sum(double arr[], int arr_size){
double *ptr;
ptr=arr;
return *ptr+((arr_size>0)?get_sum(ptr+1, arr_size-1):0);
}
int main(void)
{
double data[]={10.8,20.3,30,6.40,10.4,2.12};
printf("sum : %f\n", get_sum(data, sizeof(data)/sizeof(data[0])));
printf("average : %f\n", get_average(data, sizeof(data)/sizeof(data[0])));
return 0;
}