From 81f50c4150062cbd787a33583a53f7e32a4a2835 Mon Sep 17 00:00:00 2001
From: Roger Bell_West <Firedrake@users.noreply.github.com>
Date: Mon, 6 Dec 2021 09:14:28 +0000
Subject: Solutions for challenge #142

---
 challenge-142/roger-bell-west/python/ch-1.py | 35 ++++++++++++++++++++++++++++
 challenge-142/roger-bell-west/python/ch-2.py | 35 ++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100755 challenge-142/roger-bell-west/python/ch-1.py
 create mode 100755 challenge-142/roger-bell-west/python/ch-2.py

(limited to 'challenge-142/roger-bell-west/python')

diff --git a/challenge-142/roger-bell-west/python/ch-1.py b/challenge-142/roger-bell-west/python/ch-1.py
new file mode 100755
index 0000000000..21808d0111
--- /dev/null
+++ b/challenge-142/roger-bell-west/python/ch-1.py
@@ -0,0 +1,35 @@
+#! /usr/bin/python3
+
+import unittest
+
+from math import sqrt
+from collections import deque
+
+def factor(n):
+  if n==1:
+    return [1]
+  ff=deque()
+  s=int(sqrt(n))
+  if s*s==n:
+    ff.append(s)
+    s-=1
+  for pf in range(2,s+1):
+    if n % pf == 0:
+      ff.appendleft(pf)
+      ff.append(int(n/pf))
+  ff.appendleft(1)
+  ff.append(n)
+  return ff
+
+def dld(m,n):
+  return len([i for i in factor(m) if i % 10 == n])
+
+class TestDld(unittest.TestCase):
+
+        def test_ex1(self):
+          self.assertEqual(dld(24,2),2,'example 1')
+
+        def test_ex2(self):
+          self.assertEqual(dld(30,5),2,'example 2')
+
+unittest.main()
diff --git a/challenge-142/roger-bell-west/python/ch-2.py b/challenge-142/roger-bell-west/python/ch-2.py
new file mode 100755
index 0000000000..f377b7678a
--- /dev/null
+++ b/challenge-142/roger-bell-west/python/ch-2.py
@@ -0,0 +1,35 @@
+#! /usr/bin/python3
+
+import unittest
+
+from random import randint
+import multiprocessing as mp
+from time import sleep
+
+def sleeper(x,q):
+  sleep(float(x)/500.0)
+  q.put(x)
+
+def sleepsort(n):
+  q=mp.SimpleQueue()
+  pq=[]
+  for i in n:
+    p=mp.Process(target=sleeper,args=(i,q))
+    p.start()
+    pq.append(p)
+  for p in pq:
+    p.join()
+  r=[]
+  while not q.empty():
+    r.append(q.get())
+  return r
+
+class TestSleepsort(unittest.TestCase):
+
+        def test_ex1(self):
+          a=[]
+          for i in range(10):
+            a.append(randint(1,100))
+          self.assertEqual(sleepsort(a),sorted(a),'example 1')
+
+unittest.main()
-- 
cgit