TP T-1 Z.2

#include <iostream>
#include <cmath>

const double PI(4*atan(1));

int main()
{
    double a, b, c;
    std::cout << "Unesite tri broja: ";
    std::cin >> a >> b >> c;
    if((a > 0 && b > 0 && c > 0) && (a + b > c && b + c > a && a + c > b))
    {
        double s = (a + b + c)/2;
        double P = sqrt(s *(s - a)*(s - b)*(s - c));
        double alfa = ((acos((c*c + b*b - a*a)/(2*b*c)))*180)/PI;
        double beta = ((acos((a*a + c*c - b*b)/(2*a*c)))*180)/PI;
        double gama = ((acos((a*a + b*b - c*c)/(2*a*b)))*180)/PI;
        if(a > b && a > c)
        {
            int stepeni = (int)alfa;
            int minute = (int)(((alfa-stepeni)*3600)/60);
            int sekunde = (int)((alfa-stepeni)*3600)%60;
            std::cout << stepeni << " " << minute << " " << sekunde << std::endl;
        }
        if(b > a && b > c)
        {
            int stepeni = (int)beta;
            int minute = (int)(((beta-stepeni)*3600)/60);
            int sekunde = (int)((beta-stepeni)*3600)%60;
            std::cout << stepeni << " " << minute << " " << sekunde << std::endl;
        }
        if(c > a && c > b)
        {
            int stepeni = (int)gama;
            int minute = (int)(((gama-stepeni)*3600)/60);
            int sekunde = (int)((gama-stepeni)*3600)%60;
            std::cout << stepeni << " " << minute << " " << sekunde << std::endl;
        }
        std::cout << P << std::endl;
    }
    else
        std::cout << "Ne postoji trougao cije su duzine stranica " << a << ", " << b << " i " << c << std::endl;

    return 0;
}