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@ -56,9 +56,31 @@
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(hash-update! col-preds k (λ (vs) (set-remove! vs predidx) vs))))
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(loop)))
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(check-equal?
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(for*/product ([(colidx predidx) (in-hash assignment)]
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[pred (in-value (list-ref predicates predidx))]
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#:when (regexp-match "departure" (predicate-name pred)))
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(list-ref (ticket->ints my-ticket) colidx))
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426362917709)
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(define (test-assignment assignment)
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(for*/product ([(colidx predidx) (in-dict assignment)]
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[pred (in-value (list-ref predicates predidx))]
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#:when (regexp-match "departure" (predicate-name pred)))
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(list-ref (ticket->ints my-ticket) colidx)))
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(check-equal? (test-assignment assignment) 426362917709)
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;; CSP solution
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(require csp)
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(define col-pred-prob (make-csp))
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(define var-names (make-var-names "col" (range (length cols))))
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(add-vars! col-pred-prob var-names (range (length cols)))
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(add-pairwise-constraint! col-pred-prob alldiff var-names)
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(for ([(colvar colidx) (in-indexed var-names)])
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(add-constraint! col-pred-prob
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(λ (predidx) (andmap (predicate-func (list-ref predicates predidx))
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(list-ref cols colidx))) (list colvar)))
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(define csp-assignment
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(parameterize ([current-select-variable mrv-degree-hybrid]
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[current-order-values shuffle]
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[current-node-consistency #t])
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(for/list ([(col predidx) (in-dict (solve col-pred-prob))])
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(define colidx (string->number (car (regexp-match #px"\\d+" (~a col)))))
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(cons colidx predidx))))
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(check-equal? (test-assignment csp-assignment) 426362917709)
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