added session02

jerrytozhang · jerrytozhang · commit 38299d5bdb0e · 2014-10-10T19:27:42.000-07:00
diff --git a/Students/Hui Zhang/session02/ack.py b/Students/Hui Zhang/session02/ack.py
@@ -0,0 +1,18 @@
+def ack(m, n):
+    if m == 0:
+        return(n + 1)
+    elif m > 0 and n == 0:
+        return ack(m - 1, 1)
+    elif m > 0 and n > 0:
+        return ack(m -1, ack(m, n - 1))
+
+if __name__ == "__main__":
+    # execute only if run as a script
+    main()
+    #for m in range(0, 5):
+    #    for n in range(0, 5):
+    #        ack(m, n)
+    #        print  n + 1
+    #print "All Tests Pass"
+
+
diff --git a/Students/Hui Zhang/session02/test-ack.py b/Students/Hui Zhang/session02/test-ack.py
@@ -0,0 +1,48 @@
+from ack import ack
+
+
+count1 = 0
+if ack(0, 0) == 1:
+    count1 = count1 + 1
+if ack(1, 0) == 2:
+	count1 = count1 + 1
+if ack(2, 0) == 3:
+	count1 = count1 + 1
+if ack(3, 0) == 5:
+	count1 = count1 + 1
+if ack(0, 1) == 2:
+	count1 = count1 + 1
+if ack(1, 1) == 3:
+	count1 = count1 + 1
+if ack(2, 1) == 5:
+	count1 = count1 + 1
+if ack(3, 1) == 13:
+	count1 = count1 + 1
+if ack(0, 2) == 3:
+	count1 = count1 + 1
+if ack(1, 2) == 4:
+	count1 = count1 + 1
+if ack(2, 2) == 7:
+	count1 = count1 + 1
+if ack(3, 2) == 29:
+	count1 = count1 + 1
+if ack(0, 3) == 4:
+	count1 = count1 + 1
+if ack(1, 3) == 5:
+	count1 = count1 + 1
+if ack(2, 3) == 9:
+	count1 = count1 + 1
+if ack(3, 3) == 61:
+	count1 = count1 + 1
+if ack(0, 4) == 5:
+	count1 = count1 + 1
+if ack(1, 4) == 6:
+	count1 = count1 + 1
+if ack(2, 4) == 11:
+	count1 = count1 + 1
+if ack(3, 4) == 125:
+	count1 = count1 + 1
+
+if count1 == 20:
+    print "All Tests Pass"
+
