摘要：
Cheapest Palindrome Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 10301 Accepted: 4931 Description Keeping track of all the cows can be a 阅读全文
摘要：
Milking Time Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10434 Accepted: 4378 Description Bessie is such a hard-working cow. In fact, s 阅读全文