编程题 使用C语言来解答答:include "stdio.h"int main(){ int i, j, k;int sum1, sum2;//计算三门课总成绩,临时变量 int gradeList[][3] = { {67, 88, 90}, //分别代表三门课 {65, 98, 90},{67, 88, 90},{67, 78, 90},{67, 88, 59},{81, 88, 90},{67, 88, 89},{91, 77, 90},{...
c语言程序设计题目:计算一元二次方程的根答:include <stdio.h> /***SPACE***/ include <math.h> void main(){ float a,b,c,disc,x1,x2,realpart,imagpart;scanf("%f%f%f",&a,&b,&c);printf("the equation");/***SPACE***/ if( a <=1e-6)printf("is not quadratic\n");else { disc=b*b-4*a*c;if(fabs(disc)<...