Unable to understand the input format

#1

How to read the input data? Unable to understand the true/false present

#2

for this you have to use recursion

 node* buildTree(){
     int d;
     cin>>d;
     node*nn=new node(d);
     string str;
     cin>>str;  
     if(str=="true")nn->left=buildTree();
     else nn->left=NULL;
     cin>>str;
     if(str=="true")nn->right=buildTree();
     else nn->right=NULL;
 }
#3

Thanks. Could you please explain me how to read the true and false present in the input ?

#4

i just shared the snippet with you .you can refer to this for the basic main and build function anyways:

#5

also, a bit difficult to read the code you mentioned though!