Merge remote-tracking branch 'upstream/master'

1 files changed, 40 insertions, 0 deletions

diff --git a/challenge-187/roger-bell-west/python/ch-2.py b/challenge-187/roger-bell-west/python/ch-2.py
new file mode 100755
index 0000000000..0686ce96cd
--- /dev/null
+++ b/challenge-187/roger-bell-west/python/ch-2.py
@@ -0,0 +1,40 @@
+#! /usr/bin/python3
+
+import unittest
+
+from itertools import combinations
+
+def magicaltriplets(a):
+  out = []
+  mv = 0
+  for b in combinations(a, 3):
+    if b[0] + b[1] > b[2] and b[1] + b[2] > b[0] and b[0] + b[2] > b[1]:
+       v = sum(b)
+       if v > mv:
+         mv = v
+         out = b
+  return list(reversed(sorted(out)))
+
+class TestMagicaltriplets(unittest.TestCase):
+
+        def test_ex1(self):
+          self.assertEqual(magicaltriplets([1, 2, 3, 2]),
+                           [3, 2, 2],
+                           'example 1')
+
+        def test_ex2(self):
+          self.assertEqual(magicaltriplets([1, 3, 2]),
+                           [],
+                           'example 2')
+
+        def test_ex3(self):
+          self.assertEqual(magicaltriplets([1, 1, 2, 3]),
+                           [],
+                           'example 3')
+
+        def test_ex4(self):
+          self.assertEqual(magicaltriplets([2, 4, 3]),
+                           [4, 3, 2],
+                           'example 4')
+
+unittest.main()