求大侠帮忙：先序非递归建立二叉树，然后中序非递归输出各节点。

#include<iostream>
using namespace std;
struct binnode
{
char data;
binnode *lchild,*rchild;
};
typedef binnode *bintree;
struct seqstack
{
bintree data[100];
int top;
}s;
seqstack push(seqstack s,bintree x)
{
s.top++;
s.data [s.top ]=x;
return s;
}
seqstack pop(seqstack s)
{
s.top --;
return s;
}

bintree createtree()        //先序输入                                            

                                                
{
    bool right = false;                  
    bintree p,root;
    seqstack s;
    s.top=0;
    char ch;
    cin>>ch;
    if(ch=='#')
         root=NULL;
    else
    {
        root=(binnode*)malloc(sizeof(bintree));
        root->data=ch;
        root->lchild=root->rchild=NULL;
        push( s, root);
    }
    cin>>ch;
    while(!(s.top==0)||ch!='#')                                
     {
        if(ch!='#'&& right == false)                    
        {    p=root;
             p=(binnode*)malloc(sizeof(bintree));
             p->data=ch;
             p->lchild=p->rchild=NULL;
             root->lchild=p;
             root=p;
             push( s, root);
         }
         if (ch =='#')
         {
             pop( s);
             right = true;
         }
        if (ch!='#'&& right == true)
         {
             p=(binnode *)malloc(sizeof(bintree));
             p->data=ch;
             p->lchild=p->rchild=NULL;
             root->rchild=p;
             root=p;
             push( s,  root);
             right = false;
         }
         cin>>ch;
    }
     return root;
}

void inordertree(bintree t)
{
    bintree p=t;
    seqstack s;
    s.top =0;
    cout<<"output inorder root:"<<endl;
    while(p||s.top >0)
        {
            if(p)
                {
                    s.data [s.top ++]=p;
                    p=p->lchild ;
                }
            else
                {
                    p=s.data [--s.top ];
                    cout<<p->data ;
                    p=p->rchild ;
                }
        }
        cout<<endl;
}

void main()
{
    bintree root;
    cout<<"请先序输入各结点以建立二叉树:"<<endl;
    root=createtree();
    inordertree(root);

}