c语言主函数中任意输入三个double类型的数值abc。然后调用自定义...答:); return; } if(d>0) printf("x1=%lf\nx2=%lf\n",(-b+sqrt(d))/(2*a),(-b-sqrt(d))/(2*a)); else printf("x1=x2=%lf\n",-b/(2*a));}int main(){ double a,b,c; scanf("%lf%lf%lf",&a,&b,&c); fun(a,b,c); return 0;...
C语言:在主函数中输入x,y,调用函数求出X,y的和,差,商,积,并在主函数中...答:include<stdio.h> int add(int a,int b){ return a+b;} int sub(int a,int b){ return a-b;} int mul(int a,int b){ return a*b;} float divi(int a,int b){ return 1.0*a/b;} void main(){ int x,y;scanf("%d%d",&x,&y);printf("x+y=%d\n",add(x,y));p...