摘要：
题目： Description Archeologists from the Antiquities and Curios Museum (ACM) have flown to Egypt to examine the great pyramid of Key-Ops. Using state-of 阅读全文
摘要：
题目： Description Stan has n sticks of various length. He throws them one at a time on the floor in a random way. After finishing throwing, Stan tries t 阅读全文