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#include <bits/stdc++.h>
using namespace std;
string s;
int i;
typedef struct Node{
char data;
Node *left,*right;
}*Tree;
void CreateTree(Tree &t){
if(i >= s.size()){
t = nullptr;
return;
}
char ch = s[i++];
if(ch == '#') t = nullptr;
else{
t = new Node();
t->data = ch;
CreateTree(t->left);
CreateTree(t->right);
}
}
void In(Tree t){
if(t!=nullptr){
In(t->left);
cout << t->data << " ";
In(t->right);
}
}
int main(){
while(cin >> s){
i = 0;
&...
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