Nim or not Nim? Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 3032 Description Nim is a two-player mathematic game of strategy in which players take turns removing objects from distinct heaps.…

Nim or not Nim? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1056    Accepted Submission(s): 523 Problem Description Nim is a two-player mathematic game of strategy in which players take turn…

普通NIM规则加上一条可以分解为两堆,标准的Multi-SG游戏 一般Multi-SG就是根据拓扑图计算SG函数,这题打表后还能发现规律 sg(1)=1 sg(2)=2 sg(3)=mex{0,1,2,1^2}=4 sg(4)=mex{0,1,2,sg(3)}=3 可以发现3和4的时候相当于互换了位置 /** @Date : 2017-10-12 21:20:21 * @FileName: HDU 3032 博弈 SG函数找规律.cpp * @Platform: Windows * @Autho…

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2016 Accepted Submission(s): 1048 Problem Description Nim is a two-player mathematic game of strategy in which players take turns removing objects f…

加强版的NIM游戏,多了一个操作,可以将一堆石子分成两堆非空的. 数据范围太大,打出sg表后找规律. # include <cstdio> # include <cstring> # include <cstdlib> # include <iostream> # include <vector> # include <queue> # include <stack> # include <map> # inc…

博弈的题目,打表找规律还是相当有用的一个技巧. 这个游戏在原始的Nim游戏基础上又新加了一个操作,就是游戏者可以将一堆分成两堆. 这个SG函数值是多少并不明显,还是用记忆化搜索的方式打个表,规律就相当显然了. #include <cstdio> #include <cstring> ; ]; ]; int mex(int v) { ) return sg[v]; memset(vis, false, sizeof(vis)); ; i < v; i++) vis[mex(i)…

 这题是Lasker’s Nim. Clearly the Sprague-Grundy function for the one-pile game satisfies g(0) = 0 and g(1) = 1. The followers of 2 are 0, 1 and (1,1), with respective Sprague-Grundy values of 0, 1, and 1⊕1 = 0. Hence, g(2) = 2. The followers of 3 are 0,…

Nim or not Nim? Problem Description Nim is a two-player mathematic game of strategy in which players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provide…

意甲冠军:经典Nim游戏转换,给你n礧pi,每个堆栈有pi石头, Alice和Bob轮流石头,意一堆中拿走随意个石子,也能够将某一堆石子分成两个小堆 (每堆石子个数必须不能为0).先拿完者获胜 思路:求SG函数后找规律. SG函数定义及求法:点击打开链接 #include<cstdio> #include<stdlib.h> #include<string.h> #include<string> #include<map> #include<…

传送门 题意: nim游戏,多了一种操作:将一堆分成两堆 Multi-SG游戏规定,在符合拓扑原则的前提下,一个单一游戏的后继可以为多个单一游戏. 仍然可以使用$SG$函数,分成多个游戏的后继$SG$值为多个游戏的异或和 然后本题规模很大,手动打一下表,发现$\mod 4=3$ 时$sg(x)=x+1$,$\mod 4=0$ 时$sg(x)=x-1$,其他不变 #include <iostream> #include <cstdio> #include <cstring>…