Merge pull request #2322 from LubosKolouch/chal_078_LK

Remove extra space

1 files changed, 35 insertions, 0 deletions

diff --git a/challenge-078/lubos-kolouch/python/ch-2.py b/challenge-078/lubos-kolouch/python/ch-2.py
new file mode 100644
index 0000000000..c1be12853b
--- /dev/null
+++ b/challenge-078/lubos-kolouch/python/ch-2.py
@@ -0,0 +1,35 @@
+#!/bin/env python
+""" https://perlweeklychallenge.org/blog/perl-weekly-challenge-078/
+    Task 2
+    Left Rotation
+    19.9.2020 Lubos Kolouch """
+
+
+class ListRotator:
+    """ Rotate the array based on list of elems """
+
+    def __init__(self, arr: list(), elems: list()):
+        self.arr = arr
+        self.elems = elems
+
+    def rotate_arr(self, first: int):
+        """ Rotate the array so that passed elem is first """
+
+        return self.arr[first:] + self.arr[0:first]
+
+    def process_offset(self):
+        """ Process the list of elems for rotation """
+
+        output = list()
+
+        for elem in self.elems:
+            output.append(self.rotate_arr(elem))
+
+        return output
+
+
+test_list = ListRotator(arr=[10, 20, 30, 40, 50], elems=[3, 4])
+assert test_list.process_offset() == [[40, 50, 10, 20, 30], [50, 10, 20, 30, 40]]
+
+test_list = ListRotator(arr=[7, 4, 2, 6, 3], elems=[1, 3, 4])
+assert test_list.process_offset() == [[4, 2, 6, 3, 7], [6, 3, 7, 4, 2], [3, 7, 4, 2, 6]]