Robot Motion
来源:互联网 发布:打印机 知乎 编辑:程序博客网 时间:2024/04/29 08:20
Problem Description
A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The possible instructions are
N north (up the page)
S south (down the page)
E east (to the right on the page)
W west (to the left on the page)
For example, suppose the robot starts on the north (top) side of Grid 1 and starts south (down). The path the robot follows is shown. The robot goes through 10 instructions in the grid before leaving the grid.
Compare what happens in Grid 2: the robot goes through 3 instructions only once, and then starts a loop through 8 instructions, and never exits.
You are to write a program that determines how long it takes a robot to get out of the grid or how the robot loops around.
Input
There will be one or more grids for robots to navigate. The data for each is in the following form. On the first line are three integers separated by blanks: the number of rows in the grid, the number of columns in the grid, and the number of the column in which the robot enters from the north. The possible entry columns are numbered starting with one at the left. Then come the rows of the direction instructions. Each grid will have at least one and at most 10 rows and columns of instructions. The lines of instructions contain only the characters N, S, E, or W with no blanks. The end of input is indicated by a row containing 0 0 0.
Output
For each grid in the input there is one line of output. Either the robot follows a certain number of instructions and exits the grid on any one the four sides or else the robot follows the instructions on a certain number of locations once, and then the instructions on some number of locations repeatedly. The sample input below corresponds to the two grids above and illustrates the two forms of output. The word "step" is always immediately followed by "(s)" whether or not the number before it is 1.
Sample Input
3 6 5NEESWEWWWESSSNWWWW4 5 1SESWEEESNWNWEENEWSEN0 0
Sample Output
10 step(s) to exit3 step(s) before a loop of 8 step(s)
Source
Mid-Central USA 1999
参考答案:
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- Robot Motion
- poj 1573 Robot Motion
- Poj 1573 Robot Motion
- hdu 1035 Robot Motion
- HDU 1035 Robot Motion
- hdoj 1035 Robot Motion
- hdu 1035 Robot Motion
- poj 1573 Robot Motion
- hdu 1035 Robot Motion
- Fosstrak ALE 开发者指南
- 字符串分解
- js获取浏览器的的所有尺寸数及电脑的分辨率
- groupon
- 各种字符串合并处理示例.
- Robot Motion
- 不能使用 ALT+/ 来显示代码助手, 是不是很郁闷? (MyEclipse快捷键问题 )
- 在Linux下产生并调试core文件
- Linux下利用makefile.am和configure.in产生可安装源码包过程整理
- ORacle 10g for linux AS4安装手记!
- ArcSDE for oracle 的具体安装步骤与心得
- Binder 核心分析
- MSDN有问题导致安装SDK错误
- maven yui插件压缩js,css