There are ten errors in bstree.h and bstree.cpp.

Some are syntax errors and some are run-time errors.

Can you please help me find them and fix the erros?

// bstree.h file containing class for a Binary Search Tree

#pragma once

typedef int InfoType;

class BSTree

{

public:

BSTree() { tree = NULL; }

~BSTree();

bool Contains ( InfoType x ) const;

void Insert ( InfoType x ) { Insert ( tree, x ); }

bool Delete ( InfoType x ) { return Delete ( tree, x ); }

private:

struct TreeNode

{

InfoType info;

TreeNode *left, *right;

TreeNode( InfoType x ) { info = x; left = right = NULL; }

};

TreeNode tree;

void Insert ( TreeNode * & t, InfoType x );

bool Delete ( TreeNode * & t, InfoType x );

}

-------------------------------------------------------------

// bstree.cpp file containing bodies for BSTree class

#include "bstree.h"

#include

using namespace std;

bool BSTree::Contains( InfoType x ) const

{

TreeNode * p = tree;

while ( p->info != NULL )

{

if ( x == p->info )

return true;

if ( x < p->info )

p = p->left;

else

p = p->right;

}

return false;

}

void BSTree::Insert ( TreeNode * & t, InfoType x )

{

if ( t != NULL )

{

if ( x < t->info )

Insert ( t->left );

else

Insert ( t->right );

}

}

bool BSTree::Delete ( TreeNode * & t, InfoType x )

{

if ( t == NULL )

return false;

if ( x < t->info )

return Delete ( t->right, x );

if ( t->info < x )

return Delete ( t->left, x );

TreeNode * p = t;

if ( t->left == NULL )

t = t->right;

else if ( t->right == NULL )

t = t->left;

else

{

while ( p->right != NULL )

p = p->right;

t->info = p->info;

return Delete ( t->left, x );

}

return true;

}

BSTree::~BSTree()