#include<stdio.h> #include<math.h> int main() { double a,b,c; while(~scanf("%lf %lf %lf",&a,&b,&c)) { double s; s=(a+b+c)/2; double area=sqrt(s*(s-a)*(s-b)*(s-c)); printf("%.2f\n",area); } }
Double click to view unformatted code.