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二叉树
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#include<iostream>
using namespace std;
typedef char datatype;
typedef struct node
{
datatype data;
struct node *next;
} Lnode, *linklist;
void creat(linklist &head)
{
char ch;
linklist s,r;
head = new Lnode;
r=head;
while((ch=getchar())!='*')
{
s = new Lnode;
s->data=ch;
r->next=s;
r=s;
}
r->next=NULL;
}
void invert(linklist &head)
{
linklist p, q, r;
p=head->next;
q=p->next;
while(q!=NULL)
{
r=q->next;
q->next=p;
p=q;
q=r;
}
head->next->next=NULL;
head->next=p;
}
void print(linklist &head)
{
linklist p=head->next;
while(p!=NULL)
{
cout<<p->data<<" ";
p=p->next;
}
cout<<endl;
}
int main()
{
linklist head;
creat(head);
print(head);
invert(head);
print(head);
return 0;
}