The binary tree class 2 classes BinaryTree- storing only one pointer pointing to the root BINode-storing the value of node and links to left and right childs We provide a non-template BTNode class declaration class string BTNode p pI rivate string m szVal nt m iCnt string btNode* Child string btnode* rchild };The binary tree class ◼ 2 classes ◼ BinaryTree – storing only one pointer pointing to the root ◼ BTNode – storing the value of node and links to left and right childs ◼ We provide a non-template BTNode class declaration class string_BTNode { public: //… private: string m_szVal; int m_iCnt; string_BTNode* lchild; string_BTNode* rchild; };