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authorAleš Smodiš <aless@guru.si>2015-08-18 16:06:19 +0200
committerAleš Smodiš <aless@guru.si>2015-08-18 16:06:19 +0200
commit95e2fe57f6e4639f6ae9f1fef368829d5090dbf6 (patch)
tree462ba05eb0c4732ca1c97739548801258bf47b40 /prolog/problems/family_relations/ancestor_2
Exported all problems from the SQLite database into the new directory structure.
Diffstat (limited to 'prolog/problems/family_relations/ancestor_2')
-rw-r--r--prolog/problems/family_relations/ancestor_2/common.py13
-rw-r--r--prolog/problems/family_relations/ancestor_2/en.py14
2 files changed, 27 insertions, 0 deletions
diff --git a/prolog/problems/family_relations/ancestor_2/common.py b/prolog/problems/family_relations/ancestor_2/common.py
new file mode 100644
index 0000000..61472b6
--- /dev/null
+++ b/prolog/problems/family_relations/ancestor_2/common.py
@@ -0,0 +1,13 @@
+id = 100
+group = 'family_relations'
+number = 7
+visible = True
+facts = 'family_relations'
+
+solution = '''\
+ancestor(X, Y) :-
+ parent(X, Y).
+ancestor(X, Y) :-
+ parent(X, Z),
+ ancestor(Z, Y).
+'''
diff --git a/prolog/problems/family_relations/ancestor_2/en.py b/prolog/problems/family_relations/ancestor_2/en.py
new file mode 100644
index 0000000..4853e15
--- /dev/null
+++ b/prolog/problems/family_relations/ancestor_2/en.py
@@ -0,0 +1,14 @@
+id = 100
+name = 'ancestor/2'
+slug = 'the ancestor relation'
+
+description = '''\
+<p><code>ancestor(X, Y)</code>: <code>X</code> is an ancestor (parent, grandparent,...) of <code>Y</code>.</p>
+<pre>
+ ?- ancestor(patricia, X).
+ X = john ;
+ X = michael ;
+ X = michelle.
+</pre>'''
+
+hint = {}