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author | Aleksander Sadikov <aleksander.sadikov@fri.uni-lj.si> | 2016-02-29 13:46:53 +0100 |
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committer | Aleksander Sadikov <aleksander.sadikov@fri.uni-lj.si> | 2016-02-29 13:46:53 +0100 |
commit | 2d9a7b4323c8f78495ce45917cefdb502c846bbc (patch) | |
tree | 9c40e18d3e76f812d2998546bd10f13ec7cdf93a /prolog/problems/family_relations/aunt_2 | |
parent | e756acb31c54558ee16a0bbcda13f991b7d4f714 (diff) |
Hints for aunt/2 improved. Also added to text for predicate_always_false hints.
Diffstat (limited to 'prolog/problems/family_relations/aunt_2')
-rw-r--r-- | prolog/problems/family_relations/aunt_2/common.py | 9 | ||||
-rw-r--r-- | prolog/problems/family_relations/aunt_2/sl.py | 8 |
2 files changed, 15 insertions, 2 deletions
diff --git a/prolog/problems/family_relations/aunt_2/common.py b/prolog/problems/family_relations/aunt_2/common.py index e545000..d408041 100644 --- a/prolog/problems/family_relations/aunt_2/common.py +++ b/prolog/problems/family_relations/aunt_2/common.py @@ -33,6 +33,7 @@ hint_type = { 'aunt_vs_mother': Hint('aunt_vs_mother'), 'x_need_not_be_parent': Hint('x_need_not_be_parent'), 'y_need_not_be_parent': Hint('y_need_not_be_parent'), + 'predicate_always_false': Hint('predicate_always_false'), } test_cases = [ @@ -69,12 +70,16 @@ def hint(code, aux_code): try: engine_id, output = prolog.engine.create(code=code+aux_code, timeout=1.0) + # target predicate seems to always be false + if not prolog.engine.ask_truth(engine_id, 'aunt(_, _)'): + return [{'id': 'predicate_always_false'}] + # X and Y mixed up # warning: knowledge base dependent # independent: match on findall(X/Y, (sister(Y, P), parent(P, X)), L) if prolog.engine.ask_truth(engine_id, - 'findall(X/Y, aunt(X, Y), \ - [vanessa/sally, patricia/sally, joanne/melanie, john/vanessa, susan/patricia])'): + 'setof(X/Y, aunt(X, Y), [alessandro/daniela, alessandro/luana, jeffrey/andrew, \ + jeffrey/melanie, patricia/susan, vanessa/john, william/andrew, william/melanie])'): return [{'id': 'x_and_y_mixed_up'}] # precedence fail (AND block vs OR block) diff --git a/prolog/problems/family_relations/aunt_2/sl.py b/prolog/problems/family_relations/aunt_2/sl.py index 81014f4..15b6aec 100644 --- a/prolog/problems/family_relations/aunt_2/sl.py +++ b/prolog/problems/family_relations/aunt_2/sl.py @@ -70,5 +70,13 @@ Si morda pozabil, da teta in starš od <code>Y</code> ne smeta biti ista oseba?< Teta je namreč sestra od starša od <code>Y</code>.</p> <p><img src="[%@resource Prolog_aunt_07.svg%]" /></p> ''', # TODO: only trigger if sister is not part of correct solution + + 'predicate_always_false': '''\ +<p>Vse kaže, da tvoj predikat vedno vrne "false". Si mu dal pravilno ime, si se morda pri imenu zatipkal?</p> +<p>Če je ime pravilno, se morda splača preveriti tudi, če se nisi zatipkal kje drugje, +je morda kakšna pika namesto vejice ali obratno, morda kakšna spremenljivka z malo začetnico?</p> +<p>Možno je seveda tudi, da so tvoji pogoji prestrogi ali celo nemogoči (kot bi bila npr. zahteva, +da je <code>X</code> hkrati starš in sestra od <code>Y</code>).</p> +''', } |