summaryrefslogtreecommitdiff
path: root/prolog/problems/lists/permute_2/common.py
diff options
context:
space:
mode:
Diffstat (limited to 'prolog/problems/lists/permute_2/common.py')
-rw-r--r--prolog/problems/lists/permute_2/common.py15
1 files changed, 15 insertions, 0 deletions
diff --git a/prolog/problems/lists/permute_2/common.py b/prolog/problems/lists/permute_2/common.py
new file mode 100644
index 0000000..8e0386c
--- /dev/null
+++ b/prolog/problems/lists/permute_2/common.py
@@ -0,0 +1,15 @@
+id = 107
+group = 'lists'
+number = 14
+visible = True
+facts = None
+
+solution = '''\
+del107(X, [X|T], T).
+del107(X, [Y|T], [Y|L]) :-
+ del107(X, T, L).
+permute([], []).
+permute(L, [X|P]) :-
+ del107(X, L, L1),
+ permute(L1, P).
+'''