I don't know why error is coming

#1

here is the link to my code:ide.codingblocks.com/s/210707
please help me i am doing it from past 2 days and now i am annoyed with this question

#2

Bhavit there are few errors in your code… Pls rectify them…

  1. The function you are using to build your tree is not correct… PLs use the following approach to build your tree as ,

node* insert(node* root,int data)
{
if(root==NULL)
{
//return newB(d);
return new node(data);
}
if(data<=root->data)
{
root->left=insert(root->left,data);
}
else
{
root->right=insert(root->right,data);
}
return root;
}

  1. The approach you are trying to use for printing in a given range is also incorrect… Pls use the approach as,

void printbst(node* root,int k1,int k2)
{

if(root==NULL)
{
	return;
}
if(k1<root->data)
{
    printbst(root->left,k1,k2);
}
if(k1<=root->data && k2>=root->data)
{
    cout<<root->data<<" ";
}
if(k2>root->data)
{
    printbst(root->right,k1,k2);
}

}