题目来源:Flip and Shift 题目大意:一个椭圆形的环形容器中有黑色和白色两种盘子,问你是否可以将黑色的盘子连续的放在一起.你可以有以下两种操作: 1.顺时针旋转所有的盘子 2.顺时针旋转3个盘子 解题思路:第一种操作表明你可以对任意一个盘子执行第二种操作,所以重点在于第二种操作.仔细分析一下会发现,第二种操作其实就是将某一个盘子当前的index加2,所以我们可以先统计一下黑色盘子的个数count,然后用一个数组将所有的盘子存起来,使数组中0-count所存放的是黑色盘子(通过下标加2…

Description This puzzle consists of a random sequence of m black disks and n white disks on an oval-shaped track, with a turnstile capable of flipping (i.e., reversing) three consecutive disks. In Figure 1, there are 8 black disks and 10 white disks…

题目来源:http://poj.org/problem?id=1063 题目大意: 有一种游戏如图所示.一个填满黑白球的转盘,它可以有两种操作,一种是将大转盘顺时针旋转,所有球的位置顺时针挪一位,另一种是转动小转盘,使位于小转盘处的三个小球颠倒位置.游戏的目标是达到下面的图片所示的状态,黑球与白球都处在连续的位置上. 写一个程序判断给出的球序列是否可能通过上述的两种操作达到目标序列. 输入:第一行为测试用例数T.每个用例第一个数为小球的数目n, 接下来是n个0和1组成的序列,每个数字用空格隔开,…

题目地址:http://poj.org/problem?id=1753 /* 这题几乎和POJ 2965一样,DFS函数都不用修改 只要修改一下change规则... 注意:是否初始已经ok了要先判断 */ #include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <cmath> #include <string> #i…

Flip and Shift Time Limit: 2 Seconds      Memory Limit: 65536 KB This puzzle consists of a random sequence of m black disks and n white disks on an oval-shaped track, with a turnstile capable of flipping (i.e., reversing) three consecutive disks. In…

Flip Game Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 37427   Accepted: 16288 Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the…

1.链接地址: http://bailian.openjudge.cn/practice/1753/ http://poj.org/problem?id=1753 2.题目: 总时间限制: 1000ms 内存限制: 65536kB 描述 Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is wh…

Flip Game Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 45691   Accepted: 19590 Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the…

看题传送门:http://poj.org/problem?id=1753 DFS枚举的应用. 基本上是参考大神的.... 学习学习.. #include<cstdio> #include<iostream> using namespace std; int n,s,d,ans; bool a[5][5],flag=false; //判断全部一样的情况 bool alllike() { for(int i=0;i<4;i++) for(int j=0;j<4;j++) i…

题目网址:http://poj.org/problem?id=1753 题目: Flip Game Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the other one is black and each piece is lying ei…