tasks a-s

Task/Run-length-encoding/Python/run-length-encoding-2.py

@@ -0,0 +1,9 @@
+from itertools import groupby
+def encode(input_string):
+    return [(len(list(g)), k) for k,g in groupby(input_string)]
+
+def decode(lst):
+    return ''.join(c * n for n,c in lst)
+
+encode("aaaaahhhhhhmmmmmmmuiiiiiiiaaaaaa")
+decode([(5, 'a'), (6, 'h'), (7, 'm'), (1, 'u'), (7, 'i'), (6, 'a')])