B Alice and Bob •输入输出文件: alice.in/alice.out •源文件名: alice.cpp/alice.c/alice.pas • 时间限制: 1s 内存限制: 128M 题目描述 Alice 和 Bob 发明了一个新的游戏.给定一个序列{x0,x1,··· ,xn−1}.Alice得 到一个序列 {a0,a1,··· ,an−1},其中 ai 表示以 xi 结尾的最长上升子序列的长 度:Bob 得到一个序列 {b0,b1,··· ,bn−1},其中 bi 表示以…

Alice and Bob Time Limit:3000MS     Memory Limit:128000KB     64bit IO Format:%lld & %llu Submit Status Practice ACdream 1112 Description Here  is Alice and Bob again ! Alice and Bob are playing a game. There are several numbers. First, Alice choose…

Problem Description The famous "Alice and Bob" are playing a game again. So now comes the new problem which need a person smart as you to decide the winner. The problem is as follows: They are playing on a rectangle paper, Alice and Bob take tur…

题目链接:Alice和Bob又在玩游戏 这道题就是一个很显然的公平游戏. 首先\(O(n^2)\)的算法非常好写.暴力枚举每个后继计算\(mex\)即可.注意计算后继的时候可以直接从父亲转移过来,没必要\(O(n)\)扫一遍所有节点 . 然后我们仔细看看转移,就可以发现这玩意儿就是一个集合,每次要支持集合异或上一个数,集合插入一个数,以及集合合并.然后我们用\(Trie\)树(其实就是线段树)来维护即可.每个节点记录一个\(size\),就可以从顶往下找\(mex\)了. 下面贴代码: #inc…

Foj 2296 Alice and Bob 题意 两个人博弈,规则如下:轮流取0~9中的数字,最后Alice所得的数字个数为1~n中,数位在Alice所取集合中出现奇数次的. 双方想获得尽量多,问Alice能获得几个. 题解 观察一下,如果n是十的倍数,最后肯定是一人一半,这样一来,状态数应该会减少很多,我们就可以直接去搜. 半个月前我补这道题,一直觉得是个dp问题,现在想想,其实就是暴力去做极大极小过程,只是需要把状态数表示出来. 因为有了一开始的观察,所以可以把数字分成四类,再记一下前几位…

Alice and Bob Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4111 Description Alice and Bob are very smart guys and they like to play all kinds of games in their spare time. The most amazing thing is that they…

Alice and Bob Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 147    Accepted Submission(s): 22 Problem Description As you know, Alice and Bob always play game together, and today they get a…

Description Alice和Bob在玩游戏.有n个节点,m条边(0<=m<=n-1),构成若干棵有根树,每棵树的根节点是该连通块内编号最 小的点.Alice和Bob轮流操作,每回合选择一个没有被删除的节点x,将x及其所有祖先全部删除,不能操作的人输 .注:树的形态是在一开始就确定好的,删除节点不会影响剩余节点父亲和儿子的关系.比如:1-3-2 这样一条链 ,1号点是根节点,删除1号点之后,3号点还是2号点的父节点.问有没有先手必胜策略.n约为10w. 显然只要算出每颗子树的sg值就可以…

Alice and Bob Time Limit: 1000ms   Memory limit: 65536K 题目描述 Alice and Bob like playing games very much.Today, they introduce a new game. There is a polynomial like this: (a0*x^(2^0)+1) * (a1 * x^(2^1)+1)*.......*(an-1 * x^(2^(n-1))+1). Then Alice as…

http://acm.sdut.edu.cn/sdutoj/problem.php?action=showproblem&problemid=2608 Alice and Bob Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Alice and Bob like playing games very much.Today, they introduce a new game. There is a polynomial li…