10 lines
217 B
EmacsLisp
10 lines
217 B
EmacsLisp
(require 'cl-lib)
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(defun next-row (row)
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(cl-mapcar #'+ (cons 0 row)
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(append row '(0))))
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(defun triangle (row rows)
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(if (= rows 0)
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'()
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(cons row (triangle (next-row row) (- rows 1)))))
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