Linus’s Blog - Bresenham's Circle Drawing Algorithm

Once upon a time I was given the following problem for a technical programming interview: Write a function draw_circle(r) that draws a circle with radius r. Use the given method draw_pixel(x, y) which takes a 2-dimensional point (x, y) and colors it in on the computer screen. For the solution, you can either collect all pixels (tuples) of \(x\) and \(y\) coordinate pairs, or just call draw_pixel()