摘要：
求逆序数 时间限制：2000 ms | 内存限制：65535 KB 难度：5 求逆序数 时间限制：2000 ms | 内存限制：65535 KB 难度：5 在一个排列中，如果一对数的前后位置与大小顺序相反，即前面的数大于后面的数，那么它们就称为一个逆序。一个排列中逆序的总数就称为这个排列的逆序数。 阅读全文
摘要：
Bazinga Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 4572 Accepted Submission(s): 1459 Problem 阅读全文
摘要：
Sequence I Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2330 Accepted Submission(s): 874 Probl 阅读全文
摘要：
Sequence Given a sequence, {A1, A2, ..., An} which is guaranteed A1 > A2, ..., An, you are to cut it into three sub-sequences and reverse them separat 阅读全文
摘要：
Repository Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 5761 Accepted Submission(s): 1911 Prob 阅读全文
摘要：
What Are You Talking About Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 102400/204800 K (Java/Others)Total Submission(s): 24624 Accepted Subm 阅读全文
摘要：
Hat’s Words Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 16230 Accepted Submission(s): 5790 Pr 阅读全文
摘要：
附一个比较详细的讲解 http://www.cnblogs.com/tanky_woo/archive/2010/09/24/1833717.html 模板题(HDU 1671) 阅读全文
摘要：
统计难题 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 44313 Accepted Submission(s): 15881 Problem 阅读全文
摘要：
食物链 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 77338 Accepted: 23029 Description 动物王国中有三类动物A,B,C，这三类动物的食物链构成了有趣的环形。A吃B， B吃C，C吃A。 现有N个动 阅读全文