1 files changed, 45 insertions, 0 deletions
diff --git a/challenge-125/roger-bell-west/python/ch-1.py b/challenge-125/roger-bell-west/python/ch-1.py
new file mode 100755
index 0000000000..4fab2618f2
--- /dev/null
+++ b/challenge-125/roger-bell-west/python/ch-1.py
@@ -0,0 +1,45 @@
+#! /usr/bin/python3
+
+import unittest
+from collections import deque
+
+def pt(n):
+  out=[]
+  tri=deque()
+  tri.append([3,4,5])
+  while len(tri)>0:
+    t=tri.popleft()
+    for i in range(3):
+      dm=divmod(n,t[i])
+      if dm[1]==0:
+        out.append([i*dm[0] for i in t])
+    if min(t) <= n:
+      tri.append([
+        t[0]-2*t[1]+2*t[2],
+        2*t[0]-1*t[1]+2*t[2],
+        2*t[0]-2*t[1]+3*t[2],
+      ])
+      tri.append([
+        t[0]+2*t[1]+2*t[2],
+        2*t[0]+1*t[1]+2*t[2],
+        2*t[0]+2*t[1]+3*t[2],
+      ])
+      tri.append([
+        -t[0]+2*t[1]+2*t[2],
+        -2*t[0]+1*t[1]+2*t[2],
+        -2*t[0]+2*t[1]+3*t[2],
+      ])
+  return out
+
+class TestPt(unittest.TestCase):
+
+        def test_ex1(self):
+          self.assertEqual(pt(5),[[3,4,5],[5,12,13]],'example 1')
+
+        def test_ex2(self):
+          self.assertEqual(pt(13),[[5,12,13],[13,84,85]],'example 2')
+
+        def test_ex3(self):
+          self.assertEqual(pt(1),[],'example 3')
+          
+unittest.main()