Question: Why does the method remove(x) in the RedBlackTree implementation perform the assignment u.parent w.parent? Shouldn't this already be done by the call to splicelw)? This

Why does the method remove(x) in the RedBlackTree implementation perform the

assignment u.parent w.parent? Shouldn't this already be done by the call to

Why does the method remove(x) in the RedBlackTree implementation perform the assignment u.parent w.parent? Shouldn't this already be done by the call to splicelw)? This is the code for remove(x): RedBlackTree boolean remove (Tx) I u = findLast(x); Node if (u nil II compare ( u. x, x) != 0) return false; Node w = u.right; if (nil) w=u; u = w. left; else while (w.left != nil) w = w. left

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