#include <bits/stdc++.h>
using namespace std;
typedef struct BinNode{
char e;
struct BinNode* lchild;
struct BinNode* rchild;
}BinNode,*BinTree;
void create(BinTree &bt){
char c;
cin>>c;
if(c=='0') bt=NULL;
else{
bt=(BinTree)malloc(sizeof(BinNode));
b...