Problem 1057: Hkhv的水题之二 Time Limits: 1000 MS Memory Limits: 65536 KB 64-bit interger IO format: %lld Java class name: Main Description 杨神喜欢字符串,于是他写程序随机生成了n个长度不大于100的字符串.但是他认为这里面有一些字符串是一样的.比如,abcd,bcda,cdab,dabc这4个他认为就是一样的. 因此,杨神想知道,这些随机生成的字符串…
这里是杭电hdu上的链接:http://acm.hdu.edu.cn/showproblem.php?pid=3999 Problem Description: As we know,the shape of a binary search tree is greatly related to the order of keys we insert. To be precisely: 1. insert a key k to a empty tree, then the tree becom…