Binary Search Tree : Lowest Common Ancestor

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    python code:

    def lca(root, v1, v2):

    if root.info > v1 and root.info > v2:

       return  lca(root.left,v1,v2)
    

    elif root.info < v1 and root.info < v2:

       return lca(root.right,v1,v2)
    

    else: return root