9 lines
180 B
Common Lisp
9 lines
180 B
Common Lisp
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(defvar *sum* 0)
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(loop for x from 1 to 999 do
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(if (or (zerop(mod x 3)) (zerop (mod x 5)))
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(progn
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(setq *sum* (+ *sum* x)))))
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(format t "~d ~%" *sum*)
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