1 files changed, 25 insertions, 0 deletions
diff --git a/challenge-307/roger-bell-west/python/ch-1.py b/challenge-307/roger-bell-west/python/ch-1.py
new file mode 100755
index 0000000000..82416a2927
--- /dev/null
+++ b/challenge-307/roger-bell-west/python/ch-1.py
@@ -0,0 +1,25 @@
+#! /usr/bin/python3
+
+def checkorder(a):
+  b = a.copy()
+  b.sort()
+  out = []
+  for i, c in enumerate(a):
+    if b[i] != c:
+      out.append(i)
+  return out
+
+import unittest
+
+class TestCheckorder(unittest.TestCase):
+
+  def test_ex1(self):
+    self.assertEqual(checkorder([5, 2, 4, 3, 1]), [0, 2, 3, 4], 'example 1')
+
+  def test_ex2(self):
+    self.assertEqual(checkorder([1, 2, 1, 1, 3]), [1, 3], 'example 2')
+
+  def test_ex3(self):
+    self.assertEqual(checkorder([3, 1, 3, 2, 3]), [0, 1, 3], 'example 3')
+
+unittest.main()