题目链接: https://vjudge.net/problem/POJ-2234 题目大意: 尼姆博奕裸题 思路: 直接异或 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; int T, n, m; int main() { while(cin >> n) {…

题目大意:尼姆博弈,判断是否先手必胜. 题目思路: 尼姆博弈:有n堆各a[]个物品,两个人轮流从某一堆取任意多的物品,规定每次至少取一个,多者不限,最后取光者得胜. 获胜规则:ans=(a[1]^a[2] --^a[n]),若ans==0则后手必胜,否则先手必胜. #include<iostream> #include<algorithm> #include<cstring> #include<vector> #include<stdio.h>…

尼姆博奕(Nimm Game):有三堆各若干个物品,两个人轮流从某一堆取任意多的 物品,规定每次至少取一个,多者不限,最后取光者得胜. 这种情况最有意思,它与二进制有密切关系,我们用(a,b,c)表示某种局势,首 先(0,0,0)显然是奇异局势,无论谁面对奇异局势,都必然失败.第二种奇异局势是 (0,n,n),只要与对手拿走一样多的物品,最后都将导致(0,0,0).仔细分析一 下,(1,2,3)也是奇异局势,无论对手如何拿,接下来都可以变为(0,n,n)的情 形. 计算机算法里面有一种叫做按位模…

E.是是非非 链接:https://www.nowcoder.com/acm/contest/86/E 这个题就是尼姆博奕(我的队友小可爱很擅长这个) 代码: 1 //E 2 #include<iostream> 3 #include<cstdio> 4 #include<cstring> 5 #include<cmath> 6 #include<cstdlib> 7 #include<algorithm> 8 #include<…

nim基础博弈 #include<stdio.h> #include<iostream> #include<cstring> #include<queue> using namespace std; int main() { ]; while(~scanf("%d",&n) && n) { ; ;i < n;i++) { scanf("%d",&a[i]); ans ^= a[i]…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2176 m堆石子,两人轮流取.只能在1堆中取.取完者胜.先取者负输出No.先取者胜输出Yes,然后输出怎样取子.例如5堆 5,7,8,9,10先取者胜,先取者第1次取时可以从有8个的那一堆取走7个剩下1个,也可以从有9个的中那一堆取走9个剩下0个,也可以从有10个的中那一堆取走7个剩下3个. Input输入有多组.每组第1行是m,m<=200000. 后面m个非零正整数.m=0退出. Output先取…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1850 题目大意: 中文题: 思路: 传送门:尼姆博奕 #include<iostream> #include<string> #include<vector> #include<cstdio> #include<cstring> #include<algorithm> #include<set> #include<ma…

题目链接: https://cn.vjudge.net/problem/POJ-2234 题目描述: Here is a simple game. In this game, there are several piles of matches and two players. The two player play in turn. In each turn, one can choose a pile and take away arbitrary number of matches fro…

http://poj.org/problem?id=2234 尼姆博弈(Nimm's Game) 指的是这样一个博弈游戏:有任意堆物品,每堆物品的个数是任意的,双方轮流从中取物品,每一次只能从一堆物品中取物品,最少取一件,取到最后一件物品的人获胜. 结论:把每堆物品数全部异或起来,如果得到的值为0,那么先手必败,否则先手必胜. 直接判定即可. #include<cstdio> #include<cstring> #include<algorithm> #include&…

Description Here is a simple game. In this game, there are several piles of matches and two players. The two player play in turn. In each turn, one can choose a pile and take away arbitrary number of matches from the pile (Of course the number of mat…