#include <graphics.h>
#include <iostream>

void plotInequality() {
    for (int x = -10; x <= 10; x++) {
        if (4 * x - x * x <= 0) {
            putpixel(300 + x * 10, 300 - (4 * x - x * x) * 10, WHITE);
        } else {
            putpixel(300 + x * 10, 300 - (4 * x - x * x) * 10, WHITE);
        }
    }
}

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

    plotInequality();
	
    getch();
    closegraph();
    return 0;
}