FoAM/scheduling
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scheduling
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Azgueilem Tiyab, Epidemiological method, Lovro von Matačić & Ambassador (album).

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nik gaffney 2020-10-12 10:41:06 +02:00
parent 8893482bfd
commit 54c26debc6
1 changed files with 11 additions and 6 deletions
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17
group-scheduling.rkt
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@ -7,7 +7,7 @@
math)
;; echoing verbosity
(define verbose? #t)
(define verbose? #f)
(define (verbosity b)
(set! verbose? b)
@ -19,7 +19,7 @@
((_ str ...) (when verbose? (printf str ...)))))
;; current version
(define version "2020-10-11 14:28:50")
(define version "2020-10-12 09:48:02")
(define (print-version)
(printf "version: ~a~n" version))
@ -28,10 +28,15 @@
(define %has-met %empty-rel) ;; collection of meetings...
(define %t0 %empty-rel) ;; tentative collection...
;; meetings recordered via %assert should only be recorded once
(use-occurs-check? #t)
(define (meeting p1 p2)
(vecho "meeting between: ~a & ~a~n" p1 p2)
(%assert! %has-met () ((p1 p2)))
(%assert! %has-met () ((p2 p1))))
(vecho "meeting between: ~a & ~a~n" p1 p2)
(unless (have-they-met? p1 p2)
(begin
(%assert! %has-met () ((p1 p2)))
(%assert! %has-met () ((p2 p1))))))
;; various meetings...
;; e.g. (combinations '(p1 p2 p3 p4 p5) 4)
@ -44,7 +49,7 @@
(meeting-2 p1 p3)
(meeting-2 p2 p3))
(define (meeting-4 p1 p2 p3 p4)
(define (meeting-4 p1 p2 p3 p4) ;; '((p1 p2 p3) (p1 p2 p4) (p1 p3 p4) (p2 p3 p4))
(meeting-3 p1 p2 p3)
(meeting-3 p1 p2 p4)
(meeting-3 p1 p3 p4)