Balanced brackets: Difference between revisions
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→{{header|TXR}}: shuffle has been an intrinsic function for quite a while. |
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<lang txr>@(define paren)@(maybe)[@(coll)@(paren)@(until)]@(end)]@(end)@(end) |
<lang txr>@(define paren)@(maybe)[@(coll)@(paren)@(until)]@(end)]@(end)@(end) |
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@(do (defvar r (make-random-state nil)) |
@(do (defvar r (make-random-state nil)) |
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(defun shuffle (list) |
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(for* ((vec (vector-list list)) |
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(len (length vec)) |
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(i 0)) |
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((< i len) (list-vector vec)) |
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((inc i)) |
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(let ((j (random r len)) |
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(temp [vec i])) |
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(set [vec i] [vec j]) |
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(set [vec j] temp)))) |
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(defun generate-1 (count) |
(defun generate-1 (count) |
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