w przedziale [0,1] wartosci sa w przedziale [0, 0.5]

int iter = 100;
int count = 0;
float x,y,f_x;
std::vector <int> x_pod,x_nad,y_pod,y_nad;

for (i==0; i<iter; i++);{
    x = random (0.0f , 1.0f);
    y = random (0.0f , 0.5f);
    f_x = cos(x)^2 / (x+2);
    if (y <= f_x){
        count++;
        x_pod.append(x);
        y_pod.append(y);
    }
    else{
        x_nad.append(x);
        y_nad.append(y);
    }
}
//draw (x_pod,y_pod) color red point
//draw (x_nad,y_nad) color green point
// draw (jakiś_przedział_x,f_x) black line
return count/iter;