HDU 1088 Write a simple HTML Browser

字符串处理

  . 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).

注意输入的方式不能整行输入，不然很不好做，要一个一个单词的输入

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
int main()
{
    freopen("C:\CODE\in.txt", "r", stdin);
    //freopen("C:\CODE\out.txt","w",stdout);
    int n=0;
    char s[1000];
    while(~scanf("%s",s)){
        if(!strcmp(s,"<br>")){
            puts("");
            n=0;
        }
        else if(!strcmp(s,"<hr>")){
            if(n)
                puts("
--------------------------------------------------------------------------------");
            else
                puts("--------------------------------------------------------------------------------");
            n=0;
        }
        else{
            int len=strlen(s);
            if(!n){
                n=len;
                printf("%s",s);
            }
            else if(n+len+1>80){
                n=len;
                printf("
%s",s);
            }
            else{
                n+=len+1;
                printf(" %s",s);
            }

        }
    }
    puts("");
    fclose(stdin);
    return 0;
}