Мир Российская Премьер-лига|19-й тур
count++; // 每弹出一个，能看到的矮个子数+1
。关于这个话题，safew官方版本下载提供了深入分析
Phil Spencer's Xbox legacy
Step through the construction below. Each time a new point is inserted, watch the tree decide whether it needs to split a region: