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      Question

      Which of the following techniques is an example of

      compiler-level code optimization?
      A Adding more comments to improve readability Correct Answer Incorrect Answer
      B Replacing repeated calculations with a single computed value (common subexpression elimination) Correct Answer Incorrect Answer
      C Increasing indentation for clarity Correct Answer Incorrect Answer
      D Writing longer variable names Correct Answer Incorrect Answer
      E Adding debug print statements Correct Answer Incorrect Answer

      Solution

      Replacing repeated calculations with a single computed value (common subexpression elimination).

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