Leaves - Katie K #39
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Leaves - Katie K #39
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CheezItMan
reviewed
Feb 27, 2020
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| def inorder(list) | ||
| list = left.inorder(list) unless left.nil? | ||
| list << {key: key, value: value} | ||
| list = right.inorder(list) unless right.nil? | ||
| return list | ||
| end | ||
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| def preorder(list) | ||
| list << {key: key, value: value} | ||
| list = left.preorder(list) unless left.nil? | ||
| list = right.preorder(list) unless right.nil? | ||
| return list | ||
| end | ||
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| def postorder(list) | ||
| list = left.postorder(list) unless left.nil? | ||
| list = right.postorder(list) unless right.nil? | ||
| list << {key: key, value: value} | ||
| return list | ||
| end |
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I like how you put these into the TreeNode class.
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| # Time Complexity: O(1) | ||
| # Space Complexity: O1 | ||
| def find(key) |
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Time complexity constant? Really? Think about this a bit.
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| # Time Complexity: On | ||
| # Space Complexity: On | ||
| def inorder_helper |
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| # Time Complexity: On | ||
| # Space Complexity: On | ||
| def preorder |
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| # Time Complexity: On | ||
| # Space Complexity: On | ||
| def postorder |
| # Time Complexity: | ||
| # Space Complexity: | ||
| def max (num1, num2) |
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| def height_helper(current) | ||
| return 0 if current.nil? | ||
| return 1 + max(height_helper(current.left), height_helper(current.right)) | ||
| end | ||
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| def height |
| end | ||
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| def delete(key) | ||
| value = self.find(key) |
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Not sure what value is doing?
This is a good start at the delete method, well done. It's not quite all the way.
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These are difficult for me. I'm having a hard time visualizing how the data is processed.