fn remove_min(mut root: Box<Node>) -> (TreeNode, Box<Node>) {
        match root.left.take() {
            Some(l) => {
                let (left, min) = Self::remove_min(l);
                root.left = left;
                (Some(Node::fixup(root)), min)
            }
            None => (root.right.take(), root),
        }
    }
/// Remove the minimum from a node and returns the old minimum node.
Remove the minimum from a node and returns the old minimum node.
Remove the minimum from a node and returns the old minimum node .
fn remove_min(mut root: Box<Node>) -> (TreeNode, Box<Node>) {
        match root.left.take() {
            Some(l) => {
                let (left, min) = Self::remove_min(l);
                root.left = left;
                (Some(Node::fixup(root)), min)
            }
            None => (root.right.take(), root),
        }
    }
fn remove_min ( mut root : Box < Node > ) -> ( TreeNode , Box < Node > ) { match root . left . take ( ) { Some ( l ) => { let ( left , min ) = Self :: remove_min ( l ) ; root . left = left ; ( Some ( Node :: fixup ( root ) ) , min ) } None => ( root . right . take ( ) , root ) , } }
Remove the minimum from a node and returns the old minimum node.
Remove the minimum from a node and returns the old minimum node .
root
Box<Node>
root
Box<Node>