Added an exercise on recursion.

Added lecture notes for lists and for loop.

1 files changed, 13 insertions, 0 deletions

diff --git a/python/problems/recursion/find_sum/en.py b/python/problems/recursion/find_sum/en.py
new file mode 100644
index 0000000..0d1807c
--- /dev/null
+++ b/python/problems/recursion/find_sum/en.py
@@ -0,0 +1,13 @@
+id = 20809
+name = 'Find sum'
+
+description = '''\
+<p>(translation missing)</p>'''
+
+hint = {
+    'plan': '''\
+<p>(translation missing)</p>''',
+
+    'no_input_call': '''\
+<p>(translation missing)</p>''',
+}