C语言编程 输入四名学生的成绩,计算平均成绩答:include<stdio.h>int main(void){ int a,b,c,d; printf("请输入四个学生的成绩,然后回车"); scanf("%d %d %d %d",&a,&b,&c,&d); printf("%d",(a + b + c + d)/4 ) return 0;}
编程输入20个学生的成绩,要求统计并输出优秀(大于85)、及格(60~84)和...答:include <stdio.h> int main(){ int i, n;int excellent, pass, fail;excellent = pass = fail = 0;for(i=0;i<20;i++){ scanf("%d", &n);if(n>85)excellent++;else if(n>=60)pass++;else fail++;} printf("excellent :%d, pass :%d, fail: %d\n", excellent, pass, ...