Question

In a test for a developer job, I was asked to solve this problem which I had no idea about. Would someone please help me.

Draw a dotted line circle boundary using void draw(int x, int y) to draw one point. Use the formula x² + y² = r². You can use sqrt method, but don’t use sin, cos or tan etc.

Void DrawCircle(int centerX, int centerY, int radius) {…}

PS: This is not at all a college assignment, so please reply.

Answer 1

i wrote a quick code that could solve your problem, but havent tested it.

void DrawCircle(int centerX, int centerY, int radius)
{
    int x,y;
    x=-radius;
    while(x < radius)
    {
        y=sqrt(radius*radius-x*x);
        draw(x+centerX,y+centerY);
        y=-y;
        draw(x+centerX,y+centerY);
        x++;
    }
}