C语言:输入n个整数,求n个数之和,这个真不晓得,苦思冥想想不出,明天作...答:double sum=0.0;int i,n,x;printf("please input n\n");scanf("%d",&n);printf("input %d data\n");for (i=0;i<n;i++) { scanf("%d",&x);sum=sum+x;} printf("the sum of %d data == %lf",n, sum);} --- 若不知道将输入多少数,则这样写 (输入一行一个数据)...
任意输入n个数,计算它们的和,积,平均值,c语言答:include<math.h>main(){double a[3]={0,1},x;int n,i;printf("一共n个数字:");scanf("%d",&n);for(i=0;i<n;i++){ scanf("%lf",&x); a[0]+=x; a[1]*=x;}a[2]=a[0]/n;printf("和%lf\n",a[0]);printf("积=%lf\n",a[1]);printf("均=%lf\n",...