字符串的处理(模拟) ZOJ Problem Set - 1099 HTML

代码提交:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=1099

HTML

Time Limit: 2 Seconds      Memory Limit: 65536 KB

If you ever tried to read a html document on a Macintosh, you know how hard it is if no Netscape is installed.
Now, who can forget to install a HTML browser? This is very easy because most of the times you don‘t need one on a MAC because there is a Acrobate Reader which is native to MAC. But if you ever need one, what do you do?
Your task is to write a small html-browser. It should only display the content of the input-file and knows only the html commands (tags) <br> which is a linebreak and <hr> which is a horizontal ruler. Then you should treat all tabulators, spaces and newlines as one space and display the resulting text with no more than 80 characters on a line.

Input Specification

The input consists of a text you should display. This text consists of words and HTML tags separated by one or more spaces, tabulators or newlines.
A word is a sequence of letters, numbers and punctuation. For example, "abc,123" is one word, but "abc, 123" are two words, namely "abc," and "123". A word is always shorter than 81 characters and does not contain any ‘<‘ or ‘>‘. All HTML tags are either <br> or <hr>.

Output Specification

You should display the the resulting text using this rules:
  • If you read a word in the input and the resulting line does not get longer than 80 chars, print it, else print it on a new line.
  • If you read a <br> in the input, start a new line.
  • If you read a <hr> in the input, start a new line unless you already are at the beginning of a line, display 80 characters of ‘-‘ and start a new line (again).
The last line is ended by a newline character.

Sample Input

Hallo, dies ist eine 
ziemlich lange Zeile, die in Html
aber nicht umgebrochen wird.
<br>
Zwei <br> <br> produzieren zwei Newlines. 
Es gibt auch noch das tag <hr> was einen Trenner darstellt.
Zwei <hr> <hr> produzieren zwei Horizontal Rulers.
Achtung       mehrere Leerzeichen irritieren

Html genauso wenig wie


mehrere Leerzeilen.

Sample Output

Hallo, dies ist eine ziemlich lange Zeile, die in Html aber nicht umgebrochen
wird.
Zwei

produzieren zwei Newlines. Es gibt auch noch das tag
--------------------------------------------------------------------------------
was einen Trenner darstellt. Zwei
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
produzieren zwei Horizontal Rulers. Achtung mehrere Leerzeichen irritieren Html
genauso wenig wie mehrere Leerzeilen.
题目意思很明确:就是模拟html上的<br><hr>操作嘛,中间要处理一个总字符不超过80的情况

代码一看就懂

#include<stdio.h>
#include<string.h>
int main()
{
	char str[90];
	int leng = 0;
	while(scanf("%s",str)!=EOF)
	{
		if(strcmp(str,"<br>")==0)
		{
			printf("\n");
			leng=0;
		}
		else if(strcmp(str,"<hr>")==0)
		{
			if(leng!=0)
			{
				printf("\n");
			}
			for(int i=0;i<80;i++)
			{
				printf("-");
			}
			printf("\n");
			leng=0;
		}
		else 
		{
			if(leng==0)
			{
				printf("%s",str);
				leng+=strlen(str);
			}
			else if(leng+1+strlen(str)<=80)
			{
				printf(" %s",str);
				leng+=strlen(str)+1;
			}
			else 
			{ 
				printf("\n");
				leng =strlen(str);
				printf("%s",str);
			}
		}

	}
}

这样输入中的空格就没有了,所以我们要来处理空格的情况,为了防止每行的末尾出现空格我决定在单词前来处理空格,,别忘了空格也是一个字符。

好了!

感谢自己坚持!

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字符串的处理(模拟) ZOJ Problem Set - 1099 HTML

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