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| function rotate(root) { | |
| if (root.balanceFactor() > 1) { | |
| if (root.left.balanceFactor() === -1) leftRotate(root.left); | |
| rightRotate(root); | |
| } | |
| else if (root.balanceFactor() < -1) { | |
| if (root.right.balanceFactor() === 1) rightRotate(root.right); | |
| leftRotate(root); | |
| } | |
| } |
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