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Consider the arithmetic expressions below. For each: (a) draw its correct AST, (b) show the intermediate value of each inner-node, evaluating bottom-up, (c) write the
Consider the arithmetic expressions below. For each: (a) draw its correct AST, (b) show the intermediate value of each inner-node, evaluating bottom-up, (c) write the same expression in Polish notation, and (d) evaluate in Polish notation using stack-based evaluation as discussed in class (show each intermediate redex).
i. 1 + 2 + 3
ii. 1 + (3 4 2 2)
iii. 2 (5 4) 3
iv. 1 + 2 3 + 4 5 + 6
v. 3 (7 8) 4 (5 2 1) 1
vi. 2 3 + 4 6 1 (1 1 1) 6 (3 + 6)
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