摘要：
SPF Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 7136 Accepted: 3255 Description Consider the two networks shown below. Assuming that da 阅读全文
摘要：
Popular Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 27531 Accepted: 11077 Description Every cow's dream is to become the most popu 阅读全文