c语言作业：1.已知三角形的三边长A,B,C,计算三角形面积的公式为 S=1/2(a+b+c),area=根号s(s-a)(s-b)(s-c)

includeint a,b,c;real s,area;void main(){ print("Input A,B,C");write("a,b,c");s=0.5*(a+b+c);area=sqrt(s*(s-a)*(s-b)*(s-c));print("Output=\n");print("S=",s," Area=",area);}