题解 | #计算三角形的周长和面积#
计算三角形的周长和面积
http://www.nowcoder.com/practice/109a44d649a142d483314e8a57e2c710
int main()
{
int a,b,c;
scanf ("%d %d %d",&a,&b,&c);
float circumference =1.0*(a+b+c);
float p = 1.0*circumference/2;
float area =sqrt(p*(p-a)*(p-b)*(p-c));
printf ("circumference=%.2f area=%.2f",circumference,area);
return 0;
}
