关于编写程序的相关习题 C语言

void main()

{

int x,y,m,n;

scanf("%d%d%d%d",&x,&y,&m,&n);

int sum=x+y+m+n;

float avg=sum/4.0;

printf("sum=%d\navg=%f\n\n",sum,avg);

}

int num[4];

int i=0;

int sum=0;

double avg=0.0; printf("请输入4个数字：\n"); scanf("%d",num); while(num[i]!='\0' && i<3) {   sum+=num[i]+num[i+1];

  i++; }

avg=sum/4; printf("总和：%d",sum);

printf("平均值：%d",avg);

#include <stdio.h>

int main(void)

{

  int a, b, c, d;

  int sum;

  double ave;

  scanf("%d %d %d %d", &a, &b, &c, &d);

  sum = a + b + c + d;

  ave = (double)sum / 4;

  printf("%d\t%lf\n", sum, ave);

}