Unable to take input

#1


this is my code. and according to dry run, i m getting correct output but i am unable to find why it is wrong

Binary_Tree_Identical
#2

you can refer this for the input
class node
{
public:
string data;
nodeleft;
noderight;
node(string d)
{
data=d;
left=NULL;
right=NULL;
}
};
nodebuildtree()
{
string str;
cin>>str;
if(str==“false”)
{
return NULL;
}
if(str==“true”)
{
string d;
cin>>d;
noderoot=new node(d);
root->left=buildtree();
root->right=buildtree();
return root;
}
node*root=new node(str);
root->left=buildtree();
root->right=buildtree();
return root;
}

#3

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