Question: in c language What is the controlling expression in a switch statement? How does it relate to the case labels ? How is getchar() different

in c language

  1. What is the controlling expression in a switch statement? How does it relate to the case labels?
  2. How is getchar() different from scanf_s("%c", &x)?
  3. What is the difference between a while and a do...while loop? Give an example of when you would use each.
  4. What does the return value of scanf represent?
  5. Write a brief snippet of code with if statement that uses logical operators as they show up in C (&&, ||, !, ==, <=, etc). Do not write what the result would be.

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