习题3-21

#include <stdio.h>int main(){int a[10];int i;int max;float c;c=0;int b;int d;d=0;printf("请输入十个学生的成绩(大于等于0小于等于100):\n");for(i=0;i<=9;i++){scanf("%d",&a[i]);}for(i=0;i<=9;i++){if(a[i]>a[i+1]){max=a[i];a[i]=a[i+1];a[i+1]=max;}}printf("最高分是:%d\n",max);for(i=0;i<=9;i++){b=c+a[i];c=b;}printf("平均分是:%f\n",c/10);for(i=0;i<=9;i++){if(a[i]>=60){d=d+1;}}printf("及格人数:%d\n",d);return 0;}