Proiect AF - Intersecție segment (Pb vapor)

#include <iostream>
#include <fstream>
using namespace std;

struct Punct
{
    double coordX, coordY;
};

struct Segment
{
    Punct capat1, capat2;
    double inaltime;
};

void citire(Segment& vapor, Segment poduri[], int& nrPoduri)
{
    ifstream fin("vapor.in");

    fin >> vapor.capat1.coordX >> vapor.capat1.coordY;
    fin >> vapor.capat2.coordX >> vapor.capat2.coordY;
    fin >> vapor.inaltime;

    while (!fin.eof())
    {
        nrPoduri++;
        fin >> poduri[nrPoduri].capat1.coordX >> poduri[nrPoduri].capat1.coordY;
        fin >> poduri[nrPoduri].capat2.coordX >> poduri[nrPoduri].capat2.coordY;
        fin >> poduri[nrPoduri].inaltime;
    }
    fin.close();
}

double determinant(Punct p1, Punct p2, Punct p3)
{
    //Determinant Sarrus
    return p1.coordX * p2.coordY + p2.coordX * p3.coordY + p1.coordY * p3.coordX
        - p3.coordX * p2.coordY - p3.coordY * p1.coordX - p1.coordY * p2.coordX;
}

void parcurgereFluviu(Segment vapor, Segment poduri[], int nrPoduri)
{
    ofstream fout("vapor.out");
    bool poateTrece = true;

    for (int i = 1; i <= nrPoduri; i++)
    {
        if (determinant(vapor.capat1, vapor.capat2, poduri[i].capat1) * determinant(vapor.capat1, vapor.capat2, poduri[i].capat2) <= 0)
            if (vapor.inaltime > poduri[i].inaltime)
            {
                poateTrece = false;
                break;
            }
    }

    if (poateTrece)
        fout << "Vaporul a putut ajunge la destinatie!";
    else fout << "Vaporul nu a putut ajunge la destinatie!";

    fout.close();
}

int main()
{
    Segment poduri[100], vapor = { 0 };
    int nrPoduri = 0;

    citire(vapor, poduri, nrPoduri);
    parcurgereFluviu(vapor, poduri, nrPoduri);

    return 0;
}