From 95e2fe57f6e4639f6ae9f1fef368829d5090dbf6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ale=C5=A1=20Smodi=C5=A1?= Date: Tue, 18 Aug 2015 16:06:19 +0200 Subject: Exported all problems from the SQLite database into the new directory structure. --- prolog/problems/lists/rev_2/common.py | 15 +++++++++++++++ prolog/problems/lists/rev_2/en.py | 14 ++++++++++++++ 2 files changed, 29 insertions(+) create mode 100644 prolog/problems/lists/rev_2/common.py create mode 100644 prolog/problems/lists/rev_2/en.py (limited to 'prolog/problems/lists/rev_2') diff --git a/prolog/problems/lists/rev_2/common.py b/prolog/problems/lists/rev_2/common.py new file mode 100644 index 0000000..79c5fca --- /dev/null +++ b/prolog/problems/lists/rev_2/common.py @@ -0,0 +1,15 @@ +id = 111 +group = 'lists' +number = 18 +visible = True +facts = None + +solution = '''\ +conc111([], L, L). +conc111([H|T], L2, [H|L]) :- + conc111(T, L2, L). +rev([], []). +rev([H|T], R):- + rev(T, R1), + conc111(R1, [H], R). +''' diff --git a/prolog/problems/lists/rev_2/en.py b/prolog/problems/lists/rev_2/en.py new file mode 100644 index 0000000..9cacc95 --- /dev/null +++ b/prolog/problems/lists/rev_2/en.py @@ -0,0 +1,14 @@ +id = 111 +name = 'rev/2' +slug = 'reverse a list' + +description = '''\ +

rev(L1, L2): the list L2 is obtained from L1 by reversing the order of the elements.

+
+  ?- rev([], X).
+    X = [].
+  ?- rev([1,2,3], X).
+    X = [3,2,1].
+
''' + +hint = {} -- cgit v1.2.1