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…

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…

主题链接:problemCode=2679" target="_blank">http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=2679 Among grandfather��s papers a bill was found: 72 turkeys $_679_ The first and the last digits of the number that obviously represent…

主题链接:problemId=1680" target="_blank">http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1680 There is an analog clock with two hands: an hour hand and a minute hand. The two hands form an angle. The angle is measured as the small…

这题是目的是把黑球和白球分开连续放,事实上只要把其中一种颜色分好在一边就可以,可以绕一个球转即是第n个球可以放在n-2或者n+2上,因为这是个环,所以只需要把黑球或者白球连续放好就可以,当一共有奇数个球时,如:7个  x 1 0 1 0 1 0(x为任意颜色球)——x一开始是为奇位,然后开始把x向右移动.0 1 x 1 0 1 0——0 1 0 1 x 1 0——0 1 0 1 0 1 x——0 x 0 1 0 1 1(注意这是环)   到这里x到了偶数位..所以就是说当总球数为奇时奇偶位是可以…

题目链接: http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=2722 题目描述: Our school is planning to hold a new exciting computer programming contest. During each round of the contest, the competitors will be paired, and compete head-to-head. The…

Light Bulb Time Limit: 1 Second      Memory Limit: 32768 KB Compared to wildleopard's wealthiness, his brother mildleopard is rather poor. His house is narrow and he has only one light bulb in his house. Every night, he is wandering in his incommodio…

题目链接 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3866 思路 积分 参考博客 https://blog.csdn.net/u012377575/article/details/45285895 AC代码 #include <cstdio> #include <cstring> #include <ctype.h> #include <cstdlib> #include &l…