include<stdlib.h> define Maxsize 100 typedef int datatype;typedef struct node { datatype data;struct node* lchild;struct node* rchild;}BTNode;void CreatBTNode(BTNode *&b,char * str){ BTNode *p,*st[Maxsize];int top=-1;p=NULL;b=NULL;int j=0,k;char ch=str[j];while(ch...