Add None example for 2026.05.13 homework
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@@ -116,6 +116,7 @@ print("================ Searches ================")
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# is the search result giving us the expected node?
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# is the search result giving us the expected node?
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print(test_tree.search(4) == test_tree.root.left.right)
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print(test_tree.search(4) == test_tree.root.left.right)
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print(test_tree.search(6) == test_tree.root.right)
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print(test_tree.search(6) == test_tree.root.right)
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print(test_tree.search(20) is None)
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print("================ Removals ================")
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print("================ Removals ================")
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