#include <graphics.h>
#include <math.h>

void drawGraph() {
    int gd = DETECT, gm;
    initgraph(&gd, &gm, "");

    int x, y;
    int max_x = getmaxx();
    int max_y = getmaxy();
    int origin_x = max_x / 2;
    int origin_y = max_y / 2;

    // Draw axes
    line(0, origin_y, max_x, origin_y); // X-axis
    line(origin_x, 0, origin_x, max_y); // Y-axis

    // Plot the function
    for (x = -origin_x; x <= origin_x; x++) {
        float fx = (float)x / 10; // Scale x for better visibility
        float fy = ((fx + 4) * (fx * fx + 3 * fx + 2)) / (fx + 1);
        y = origin_y - (int)(fy * 10); // Scale y for better visibility

        putpixel(origin_x + x, y, GREEN);
    }

    getch();
    closegraph();
}

int main() {
    drawGraph();
    return 0;
}