Problem 4.

Find the largest palindrome made from the product of two 3-digit
numbers.

Gauche Scheme

(use srfi-42) ;; max-ec

(max-ec (:range m 100 1000)(:range n 100 1000)
(:let p (* m n))
(:let s (x->string p))
(if (equal? s (string-reverse s)))
p)

===>
906609

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