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",...
C语言求n个数的阶乘和,使用for语句循环,一定要用套嵌for语句吗?不用套...答:当然可以用单层循环!看——include "stdio.h"int main(int argc,char *argv[]){int i,t,k,n;printf("Please enter n(int 0<n<13)...\n");if(scanf("%d",&n)!=1 || n<1 || n>12){printf("Input error, exit...\n");return 0;}for(k=0,t=i=1;i<=n;t*=i++,k...