HDU 1088 输入输出格式题
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Write a simple HTML Browser
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 11882 Accepted Submission(s): 3421Problem DescriptionIf 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.InputThe 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>.OutputYou 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 InputHallo, dies ist eine ziemlich lange Zeile, die in Htmlaber 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 irritierenHtml genauso wenig wiemehrere Leerzeilen.Sample OutputHallo, dies ist eine ziemlich lange Zeile, die in Html aber nicht umgebrochenwird.Zweiproduzieren zwei Newlines. Es gibt auch noch das tag--------------------------------------------------------------------------------was einen Trenner darstellt. Zwei----------------------------------------------------------------------------------------------------------------------------------------------------------------produzieren zwei Horizontal Rulers. Achtung mehrere Leerzeichen irritieren Htmlgenauso wenig wie mehrere Leerzeilen.
http://acm.hdu.edu.cn/showproblem.php?pid=1088
分析:一个输入输出格式的题。注意点:
1.一行80个字符,最后一个单词没有空格
2.判断是否要开新行
3.注意空格要占用一个字符的位置
。。。。。PE好久才把这题过了
#include<iostream>#include<string>using namespace std;#define maxn 1000#define LOCALstring buff[maxn];int totlen;int n = 0;const int maxLen = 80;int main() {#ifdef LOCALfreopen("ACMinput.txt", "r", stdin);#endifwhile (cin >> buff[n++]);int curlen = 0;totlen = 0;for (int i = 0; i < n-1; i++) {if (buff[i] == "<br>") {cout << endl;totlen = 0;}else if (buff[i] == "<hr>") {if (totlen) cout << endl;//判断是否开新行for (int i = 0; i < maxLen; i++)cout << "-";cout << endl;totlen = 0;}else {//注意技巧,第一个单词不输出空格,后面的单词在前面输出空格curlen = buff[i].length();if (!totlen) {totlen = curlen;cout << buff[i];}else if (curlen + totlen + 1 > 80) {totlen = curlen;cout << endl << buff[i];}else {totlen += curlen + 1;cout << " " << buff[i];}}}cout << endl;return 0;}
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