我正在尝试将此 Python 代码转换为 Common Lisp:
for a in xrange(1,1000):
for b in xrange(a,1000):
c = (a**2 + b**2) ** 0.5
s = a + b + c
if s == 1000:
return a * b * c
我的第一次尝试是:
(loop for a from 1 to 999
do (loop for b from a to 999
for c = (sqrt (+ (expt a 2) (expt b 2)))
for s = (+ a b c)
until (= s 1000)
finally return (* a b c))))
这行不通。我的任务是:当s
点击 1000 时,使上面的整个表达式返回(* a b c)
。如何从嵌套循环宏中返回一些值?