From 95e2fe57f6e4639f6ae9f1fef368829d5090dbf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ale=C5=A1=20Smodi=C5=A1?= <aless@guru.si>
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/len_2/common.py | 12 ++++++++++++
 prolog/problems/lists/len_2/en.py     | 12 ++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 prolog/problems/lists/len_2/common.py
 create mode 100644 prolog/problems/lists/len_2/en.py

(limited to 'prolog/problems/lists/len_2')

diff --git a/prolog/problems/lists/len_2/common.py b/prolog/problems/lists/len_2/common.py
new file mode 100644
index 0000000..62be9cc
--- /dev/null
+++ b/prolog/problems/lists/len_2/common.py
@@ -0,0 +1,12 @@
+id = 119
+group = 'lists'
+number = 26
+visible = True
+facts = None
+
+solution = '''\
+len([], 0).
+len([_|T], Len) :-
+  len(T, LenT),
+  Len is LenT + 1.
+'''
diff --git a/prolog/problems/lists/len_2/en.py b/prolog/problems/lists/len_2/en.py
new file mode 100644
index 0000000..b3e277c
--- /dev/null
+++ b/prolog/problems/lists/len_2/en.py
@@ -0,0 +1,12 @@
+id = 119
+name = 'len/2'
+slug = 'find the length of a list'
+
+description = '''\
+<p><code>len(L, Len)</code>: <code>Len</code> is the length of the list <code>L</code>.</p>
+<pre>
+  ?- len([1,2,3], Len).
+    Len = 3.
+</pre>'''
+
+hint = {}
-- 
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