#include<iostream>
#include<cmath>

using namespace std;
#include "Triangle.h"

Triangle::Triangle(int a_,int b_, int c_)
{
    a=a_;
    b=b_;
    c=c_;
}

double Triangle::p()
{
    return (a+b+c)/2;
}

double Triangle::S()
{
    return sqrt(p()*(p()-a)*(p()-b)*p()-c);
}

void Triangle::print()
{
    cout<<a<<' '<<b<<' '<<c<<endl;
}