codeforces412A
Poster
The R1 company has recently bought a high rise building in the centre of Moscow for its main office. It's time to decorate the new office, and the first thing to do is to write the company's slogan above the main entrance to the building.
The slogan of the company consists of n characters, so the decorators hung a large banner, n meters wide and 1 meter high, divided into n equal squares. The first character of the slogan must be in the first square (the leftmost) of the poster, the second character must be in the second square, and so on.
Of course, the R1 programmers want to write the slogan on the poster themselves. To do this, they have a large (and a very heavy) ladder which was put exactly opposite the k-th square of the poster. To draw the i-th character of the slogan on the poster, you need to climb the ladder, standing in front of the i-th square of the poster. This action (along with climbing up and down the ladder) takes one hour for a painter. The painter is not allowed to draw characters in the adjacent squares when the ladder is in front of the i-th square because the uncomfortable position of the ladder may make the characters untidy. Besides, the programmers can move the ladder. In one hour, they can move the ladder either a meter to the right or a meter to the left.
Drawing characters and moving the ladder is very tiring, so the programmers want to finish the job in as little time as possible. Develop for them an optimal poster painting plan!
Input
The first line contains two integers, n and k (1 ≤ k ≤ n ≤ 100) — the number of characters in the slogan and the initial position of the ladder, correspondingly. The next line contains the slogan as n characters written without spaces. Each character of the slogan is either a large English letter, or digit, or one of the characters: '.', '!', ',', '?'.
Output
In t lines, print the actions the programmers need to make. In the i-th line print:
- "LEFT" (without the quotes), if the i-th action was "move the ladder to the left";
- "RIGHT" (without the quotes), if the i-th action was "move the ladder to the right";
- "PRINT x" (without the quotes), if the i-th action was to "go up the ladder, paint character x, go down the ladder".
The painting time (variable t) must be minimum possible. If there are multiple optimal painting plans, you can print any of them.
Examples
2 2
R1
PRINT 1
LEFT
PRINT R
2 1
R1
PRINT R
RIGHT
PRINT 1
6 4
GO?GO!
RIGHT
RIGHT
PRINT !
LEFT
PRINT O
LEFT
PRINT G
LEFT
PRINT ?
LEFT
PRINT O
LEFT
PRINT G
Note
Note that the ladder cannot be shifted by less than one meter. The ladder can only stand in front of some square of the poster. For example, you cannot shift a ladder by half a meter and position it between two squares. Then go up and paint the first character and the second character.
sol:无脑模拟即可
#include <bits/stdc++.h>
using namespace std;
typedef int ll;
inline ll read()
{
ll s=;
bool f=;
char ch=' ';
while(!isdigit(ch))
{
f|=(ch=='-'); ch=getchar();
}
while(isdigit(ch))
{
s=(s<<)+(s<<)+(ch^); ch=getchar();
}
return (f)?(-s):(s);
}
#define R(x) x=read()
inline void write(ll x)
{
if(x<)
{
putchar('-'); x=-x;
}
if(x<)
{
putchar(x+''); return;
}
write(x/);
putchar((x%)+'');
return;
}
#define W(x) write(x),putchar(' ')
#define Wl(x) write(x),putchar('\n')
const int N=;
int n,m;
char S[N];
int main()
{
int i;
R(n); R(m);
scanf("%s",S+);
if(m-<n-m)
{
for(i=;i<m;i++) puts("LEFT");
for(i=;i<n;i++)
{
cout<<"PRINT "; putchar(S[i]); putchar('\n'); puts("RIGHT");
}
cout<<"PRINT "; putchar(S[n]);
}
else
{
for(i=m;i<n;i++) puts("RIGHT");
for(i=n;i>;i--)
{
cout<<"PRINT "; putchar(S[i]); putchar('\n'); puts("LEFT");
}
cout<<"PRINT "; putchar(S[]);
}
return ;
}
/*
Input
2 2
R1
Output
PRINT 1
LEFT
PRINT R Input
2 1
R1
Output
PRINT R
RIGHT
PRINT 1 Input
6 4
GO?GO!
Output
RIGHT
RIGHT
PRINT !
LEFT
PRINT O
LEFT
PRINT G
LEFT
PRINT ?
LEFT
PRINT O
LEFT
PRINT G
*/
codeforces412A的更多相关文章
随机推荐
- ubuntu下npm全局安装包报错的解决方案
大概就是 npm WARN registry Unexpected warning for https://registry.npmjs.org/: Miscellaneous Warning ERR ...
- Windows 安装和配置 WSL
Windows 安装和配置 WSL 什么是 WSL 引用百度百科的一段话: Windows Subsystem for Linux(简称WSL)是一个为在Windows 10上能够原生运行Linux二 ...
- 连接云服务器中MySql数据库遇到的问题
使用的免费的云服务器,上面只能下载MySql数据库,不过当云数据库使用绰绰有余了,也就放一些测试数据而已 而且上面只可以部署php项目,.netcore项目部署实现比较麻烦 问题如下: 下载了navi ...
- JavaScript例子1-给网页中所有<p>元素添加onclick事件
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title&g ...
- css强制换行显示省略号之显示两行后显示省略号
1,首先来一个固定宽度,在一行显示,超出隐藏,显示省略号的样式 display:block; white-space:nowrap; overflow:hidden; text-overflow:el ...
- umi+antdpro 2.3
关于umi接管了路由之后的动态配置. 路由通过 router.js 配置文件自动生成. 在 models/ menu.js中可以获取到,但从这里获取到并过滤之后的其实不是路由配置. 正确过滤方式,通过 ...
- 红队基础设施建设:隐藏你的C2
0x01 前言 待定
- 基于MQTT的串口数据转发器
问: ComHub能做什么?ComHub使用MQTT协议,将串口数据经TCP分发出去.这种结构可以实现很多功能:1.COM-Over-TCP: 将COM数据使用TCP远程传送;2.COM多播:一个CO ...
- kubernetes之service
service出现的动机 Kubernetes Pods 是有生命周期的.他们可以被创建,而且销毁不会再启动. 如果您使用 Deployment 来运行您的应用程序,则它可以动态创建和销毁 Pod. ...
- OWASP Hakcing Lab在线漏洞环境
OWASP Hakcing Lab在线漏洞环境 OWASP hakcing-lab 是一个提供免费的远程安全(Web)挑战和 OWASP TOP 10,OWASP WebGoat,OWASP Ha ...