摘要：
题目: A university network is composed of N computers. System administrators gathered information on the traffic between nodes, and carefully divided th 阅读全文
摘要：
题目: For a group of people, there is an idea that everyone is equals to or less than 6 steps away from any other person in the group, by way of introdu 阅读全文
摘要：
题目: The police office in Tadu City decides to say ends to the chaos, as launch actions to root up the TWO gangs in the city, Gang Dragon and Gang Snak 阅读全文