Problem 44382. Parse me a Lisp

Solution 1315552

Submitted on 26 Oct 2017 by Joe Blomer

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Test	Status	Code Input and Output
1	Pass	expr = "(+ 1 1 1 1 1)"; assert(isequal(eval_lisp(expr), 5));
2	Pass	expr = "(+ 1 5)"; assert(isequal(eval_lisp(expr), 6));
3	Pass	expr = "(+ 1 1 1 1 1 1 1 1 1 1 1 1 1)"; assert(isequal(eval_lisp(expr), 13));
4	Pass	expr = "(+ 1 2 3 4 5 6 7 8 9 10)"; assert(isequal(eval_lisp(expr), 55));
5	Pass	expr = "(* 1 2 3 4 5 6 7 8 9 10)"; assert(isequal(eval_lisp(expr), 3628800));
6	Pass	expr = "(* (* 10 (+ 1 4)) (+ 10 (/ 12 2 3) 1) 0.1)"; assert(isequal(eval_lisp(expr), 65));