第四章例4-2
/* 輸入一批學生的成績,以負數作為結束標志,計算平均成績,并統計不及格人數 */
#include<stdio.h>
int main(void)
{int count,num;double grade,total;num=0;total=0;count=0;printf("Enter grades:");scanf_s("%lf",&grade);while(grade>=0){total=total+grade;num++;if(grade<60)count++;scanf_s("%lf",&grade);}if(num!=0){printf("Grade average is %.2f\n",total/num);printf("Number of failures is %d\n",count);}elseprintf("Grade average is 0\n");return 0;
}
轉載于:https://www.cnblogs.com/laurenliu1994/p/3352980.html
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