Hi, I need help with red-black trees concept. Can someone please help answer this: Construct a binary tree using these values: 14b, -12b, 45b, -20b, -7b, 22b, 65r, 59b, 82b. Is this a valid red-black tree? Explain why or why not in full detail. If it is valid, delete the 14 from this tree and show all your working.