Je was op zoek naar: rectangles (Russisch - Engels)

Головоломка rectangles (Прямоугольники)
rectangles

then you definitely have the three rectangles: c
then you definitely have the three rectangles: c

two crossing rectangles, phi by (phi +1).
two crossing rectangles, phi by (phi +1).

Функция cairocontext::cliprectanglelist() - retrieves the current clip as a list of rectangles
Функция cairocontext::cliprectanglelist() - retrieves the current clip as a list of rectangles

we construct a rectangle with one side coincident with ab and contains the point c on the opposite side to ab. let the same construction starting from the side bc and the side ac, thus obtainingthree rectangles.
we construct a rectangle with one side coincident with ab and contains the point c on the opposite side to ab. let the same construction starting from the side bc and the side ac, thus obtainingthree rectangles.

msgbuilder.append(string.format("rectangles - {0} ms; ", watch.elapsedmilliseconds));
msgbuilder.append(string.format("rectangles - {0} ms; ", watch.elapsedmilliseconds));