View Code of Problem 24

#include<stdio.h>
#include<stdbool.h>
#include<math.h>
int main(){

double a;
double b;
double c;
while((scanf("%lf%lf%lf",&a,&b,&c))!=EOF){
    double p=(a+b+c)/2;
    double s=sqrt(p*(p-a)*(p-b)*(p-c));
    printf("%.2lf\n",s);
}
return 0;
}