题目 肯千网络公司最新推出了完全由偶像一对一对战构成的网络选秀节目。在该节目中，节目组邀请了 n 位偶像，每天 […]
PAT (Advanced Level) Practice 1004 Counting Leaves
A family hierarchy is usually presented by a pedigree t […]
PAT (Advanced Level) Practice 1003 Emergency
As an emergency rescue team leader of a city, you are g […]