Dan's Thoughts Thinking somewhat carefully

Exercise 2.24 of SICP

Exercise 2.24: Suppose we evaluate the expression (list 1 (list 2 (list 3 4))). Give the result printed by the interpreter, the corresponding box-and-pointer structure, and the interpretation of this as a tree (as in figure 2.6).

(1 (2 (3 4)))

1
2
3
4
5

[1 *]->[* /]
       |
       [2 *]->[* /]
              |
              [3 *]->[4 /]