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The Binary Search Tree (BST) is a hierarchical data structure with a single pointer to the root node. The Node in the BST generally contains "items" (such as numbers or names) for fast look up. Each node has at-most two children (left and right). Every node is organized by some key data f...

struct tree{ int a; tree* right; tree* left; }; tree* root=NULL; void insert(tree*& in, int b){ if(in){ if(in->a<b) insert(in->right,b); else if(in->a>b) insert(in->left,b); ...