pan style="color:#ff3333ff;"><strong>outer</strong></span> and <span style="color:#1a8effff;"><strong>inner</strong></span> contours must be simple, meaning they must not self-intersect and must not share edges with other contours.</em></p>
<div style="break-before: page; page-break-before: always;"></div><h1 id="overlay-graph-1"><a class="header" href="#overlay-graph-1">Overlay Graph</a></h1>
<p><img src="overlay/overlay_graph/example.svg" alt="Example" />
An Overlay Graph is a data structure representing 