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}}

public final class InOrderRopeIterator implements Iterator { private final Deque stack;

public InOrderRopeIterator(@NonNull RopeLike root) { stack = new ArrayDeque<>(); RopeLike c = root; while (c != null) { stack.push(c); c = c.getLeft(); } }

@Override public boolean hasNext() { return stack.size() > 0; }

@Override public RopeLike next() { RopeLike result = stack.pop();

if

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