sicp 1.3

xiaoxiao2026-06-08  27

定义一个过程,返回3个数中较大的2个数之和。

 

(define (sum-max2 a b c) (cond ((and (< a b) (< a c)) (+ b c)) ((and (< b a) (< b c)) (+ a c)) ((and (< c a) (< c b)) (+ a b))))
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