View Code of Problem 24

#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
int main()
{
	float s,p;
    int a,b,c;
	cin>>a>>b>>c;
	p=(a+b+c)/2;
	s=sqrt(p*(p-a)*(p-b)*(p-c));
	cout<<fixed<<setprecision(2)<<s<<endl;
	 
 }