Binary Tree creation 8 / \ / \ 6 5 / \ / \ / \ / \ 6 7 3 9
root = Node ( 8 ) NEW_LINE root . left = Node ( 6 ) NEW_LINE root . right = Node ( 5 ) NEW_LINE root . left . left = Node ( 6 ) NEW_LINE root . left . right = Node ( 7 ) NEW_LINE root . right . left = Node ( 3 ) NEW_LINE root . right . right = Node ( 9 ) NEW_LINE minNodeVal = sys . maxsize NEW_LINE