Add quiz 3 content, and quiz 3 practice

tests/practice/Q3/practice_questions.py

@@ -0,0 +1,32 @@
+def is_word(word):
+	counter = 0
+	for l in word:
+		if (counter % 2) == 0: #zero is vowel, one is constanant
+			if l == 'a' or l == 'e' or l == 'i' or l == 'o' or l == 'u':
+				counter = counter + 1
+			else:
+				return False
+		else:
+			if l == 'b' or l == 'k' or l == 'p' or l == 't' or l == 'z':
+				counter = counter + 1
+			else:
+				return False	
+	return True
+	
+def cycle(lst):
+	while True:
+		yield lst
+		x = lst[0]
+		lst = lst[1:]
+		lst.append(x)
+		
+class Skippy:
+	def __init__(self, lst, offset)
+		self.lst = lst
+		self.offset = offset
+		self.counter = 0
+		
+	def __next__(self)
+		if self.counter >  length(self.lst)
+			self.counter = 0
+			

tests/practice/Q3/test_practice_questions.py

@@ -0,0 +1,37 @@
+from practice_questions import is_word
+
+def test_match():
+    assert is_word("akataka") == True
+    assert is_word("ububu") == True
+    assert is_word("ikekezaza") == True
+
+def test_extra():
+    assert is_word("akatakaa") == False
+    assert is_word("uububu") == False
+
+def test_bad_letter():
+    assert is_word("yakataka") == False
+    assert is_word("akatakala") == False
+
+def test_consonant_start():
+    assert is_word("kakataka") == False
+    assert is_word("bububu") == False
+
+
+from practice_questions import cycle
+def test_small():
+    lst = [1,2,3]
+    g = cycle(lst)
+    assert next(g) == lst
+    assert next(g) == [2,3,1]
+    assert next(g) == [3,1,2]
+
+def test_big():
+    n = 5000
+    lst = list(range(n))
+    g = cycle(lst)
+    for j in range(n):
+        lst2 = next(g)
+    assert lst2[0] == n-1
+    lst3 = next(g)
+    assert lst3==lst