[Laboratoriski] Presek na otsechki

#include <stdio.h>

typedef struct tocka {
    float x;
    float y;
} tocka;

typedef struct otsecka {
    tocka s;
    tocka e;
} otsecka;

int se_secat(otsecka o1, otsecka o2) {
    // vashiot kod ovde
     int seSecat = 0;

    float k1 = (o1.s.y - o1.e.y) / (o1.s.x - o1.e.x);
    float k2 = (o2.s.y - o2.e.y) / (o2.s.x - o2.e.x);

    float b1 = o1.s.y - k1*o1.s.x;
    float b2 = o2.e.y - k2*o2.e.x;

    if(k1 == k2)
    {
        float levaTocka = o1.s.x;
        float des = o2.e.x;

        return levaTocka >= des;
    }


    float finalno_k = k1-k2;
    float finalno_b = b1-b2;

    float res = -finalno_b/finalno_k;

    seSecat = ((res>=o1.s.x&&res <= o1.e.x)&&(res>= o2.s.x&&res <= o2.e.x));
    return seSecat;
}

int main() {
    double x1, y1, x2, y2;
    scanf("%lf %lf %lf %lf", &x1, &y1, &x2, &y2);
    tocka t1 = { x1, y1 };
    tocka t2 = { x2, y2 };
    otsecka o1 = { t1, t2 };
    scanf("%lf %lf %lf %lf", &x1, &y1, &x2, &y2);
    tocka t3 = { x1, y1 };
    tocka t4 = { x2, y2 };
    otsecka o2 = { t3, t4 };
    printf("%d\n", se_secat(o1, o2));
    return 0;
}