作业3-2 输入一个正整数 n,再输入 n 个学生的成绩,计算平均成绩,并统计所有及格学生的人数。
#include<stdio.h> int main(void) { int n,m; double grade,total; n=0; m=0; total=0; printf("Enter grades:"); scanf_s("%lf",&grade); while(grade>=0){ total=total+grade; m++; if(grade<60) n++; scanf_s("%lf",&grade); } if(m!=0){ printf("Grade average is %.2f\n",total/m); printf("Number of failuers is %d\n",n); } else printf("Grade average is 0\n"); return 0; }