Update Data_Structures_Answers.md

Author: br80

Data_Structures_Answers.md

@@ -7,3 +7,12 @@ Add your answers to the questions below.
 3. What is the runtime complexity of your `breadth_first_for_each` method?
 
 4. What is the space complexity of your `breadth_first_for_each` method?
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+5. What is the runtime complexity of the provided code in `names.py`?
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+6. What is the space complexity of the provided code in `names.py`?
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+7. What is the runtime complexity of your optimized code in `names.py`?
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+8. What is the space complexity of your optimized code in `names.py`?