too! I'm good at math!""The hardest part of this problem is proving the theorem at the end. The beginning is fine, many people can do it... Just watch, Fang Yu will definitely get stuck soon."The stud...thing.Fang Yu frowned and turned around.At this time, he noticed that a pattern had appeared on the ground.Although the surrounding streetlights were all blown out, by moonlight, one could still clear...