What is even in the chapter? We can't really say anything before knowing that. It's probably just asking you to have some nested if's. Even perhaps something like:
C++ Code:
  1. int smallest = a;

  2.  
  3. if (b < a)

  4.     smallest = b;

  5. if (c < b)

  6.     smallest = c;

  7. if (c < a)

  8.     smallest = c;
..etc.

chem