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Ingy döt Net 2023-07-01 11:58:00 -04:00
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commit cb5bb5e222
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Task/Amicable-pairs/REBOL/amicable-pairs.rebol Normal file
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@ -0,0 +1,16 @@
;- based on Lua code ;-)
sum-of-divisors: func[n /local sum][
sum: 1
; using `to-integer` for compatibility with Rebol2
for d 2 (to-integer square-root n) 1 [
if 0 = remainder n d [ sum: n / d + sum + d ]
]
sum
]
for n 2 20000 1 [
if n < m: sum-of-divisors n [
if n = sum-of-divisors m [ print [n tab m] ]
]
]