Suppose that we say: 

Cons lst = null;
for (int i = 0; i < 3; i++ )
    lst = append( list(i), lst );

What is the value of lst?

  • A: (1 2 3)
  • B: (3 2 1)
  • C: (0 1 2 3)
  • D: (0 1 2)
  • E: (2 1 0)

    Answer: E

    This code is adding the item i to the front of the list (in a somewhat wasteful fashion: lst = cons( i, lst ) would do the same thing).

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