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#include<iostream>
using namespace std;
class node;
class dom;
class nodecollect{
private:
 node *n;
 int length;
public:
 nodecollect();
 ~nodecollect();
    int getlength();
 node* item(int i);
 void add(node *nn);
 
};
class node{
private:
 int start;
 int len;
public:
 char* innerhtml(dom& d);
 char* outerhtml(dom& d);
 char* innertext(dom& d);
 char* getattr(dom& d,char* str);
 char* tagname(dom& d);
 node* getparent(dom &d);
 nodecollect* getchild(dom &d);
node* getnext(dom &d);
 node* getprevious(dom &d);
 node *next;
 void setstart(int i);
 void setlen(int i);
 int getstart();
 int getlen();
};
class dom{
private:
 char *text;
 node *n;
 int count;
 int parse(char *s);
public:
 ~dom();
 char *gettext();
 void load(char *str);
 node* getitem(int i);
 int getcount();
 node *getbyid(char* id);
 nodecollect* getbytagname(char *tagname);
};
void dom::load(char* str){
 n=0;
 count=0;
 int l=strlen(str


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