虽无鲲鹏翼，不坠凌云心

拼凑春联 问题描述春节到了，春联是必不可少的东西^_^。众所周知，一幅对联的“上联”和“下联”是对偶（也叫对仗）的。例如：上联：九州雨顺千山绿下联：六合风调万户丰BluePoint不喜欢已有的春联组合，所以此人想从已知的佳句中找出两句对偶的，组合出一些新的春联^_*。图书馆有一个“名句文库”，BluePoint想知道其中的名句一共可以拼凑出多少组不同的春联，请您帮帮忙，

B. Sereja and Stairstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSereja loves integer sequences very much. He espe

Singles' DayTime Limit: 2 Seconds      Memory Limit: 65536 KB Singles' Day(or One's Day), an unofficial holiday in China, is a pop culture entertaining holiday on November 11 for young Chine

Girls and BoysTime Limit: 5000MS Memory Limit: 10000KTotal Submissions: 10059 Accepted: 4447DescriptionIn the second year of the university somebody started a study

MPI MaelstromTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 4821 Accepted: 2935DescriptionBIT has recently taken delivery of their new supercomputer, a 3

CoursesTime Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3247    Accepted Submission(s): 1555Problem DescriptionConsider a group of

SticksTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 115807 Accepted: 26640DescriptionGeorge took sticks of the same length and cut them randomly until a