BRANCHING & BOOLEAN LOGIC
This Python keyword begins a conditional statement.
What is "if"?
These are the four numbers generated by range(4), in order.
What are 0, 1, 2, and 3?
This is the index of the first element in a Python list.
What is 0?
This character is printed by the following code:
word = "python"
print(word[0])What is "p"?
This Python keyword is used to define a function.
What is "def"?
This is the text printed by the following code:
x = 5
if x >= 5:
print("Yes")
else:
print("No")What is "Yes"?
These three numbers are printed, in order, by the following loop:
for i in range(2, 7, 2):
print(i)What are 2, 4, and 6?
Each prints on its own line.
This is the number printed by the following code:
numbers = [2, 4, 6]
numbers.append(8)
print(len(numbers))What is 4?
This is the value returned by len("crow").
What is 4?
This Python keyword sends a value back to the code that called a function, rather than merely displaying it.
What is "return"?
This is the Boolean value of the following expression:
not (True and False)What is True?
This is the final value printed by the following code:
total = 0
for i in range(1, 5):
total += i
print(total)What is 10?
This is the list printed by the following code:
nums = [3, 5, 7]
nums[1] = nums[0] + nums[2]
print(nums)What is [3, 10, 7]?
This text is printed by the following code:
word = "PyThOn"
print(word.lower())What is "python"?
This is the number printed by the following function calls:
def square(n):
return n * n
print(square(3) + square(2))What is 13?
This is the letter printed by the following code:
x = 9
if x % 3 == 0 and x % 2 != 0:
print("A")
else:
print("B")What is "A"?
This is the value printed after the following while loop finishes:
n = 1
while n < 10:
n *= 2
print(n)What is 16?
This is the list produced after the following loop runs:
nums = [1, 2, 3, 4, 5]
selected = []
for x in nums:
if x % 2 == 1:
selected.append(x * x)
print(selected)What is [1, 9, 25]?
This number is printed after counting the letter A without distinguishing uppercase from lowercase:
word = "Banana"
count = 0
for letter in word:
if letter.lower() == "a":
count += 1
print(count)What is 3?
This is the list printed by the following function call:
def keep_even(nums):
result = []
for n in nums:
if n % 2 == 0:
result.append(n)
return result
print(keep_even([7, 2, 4, 9]))What is [2, 4]?
This is the word printed by the following nested conditional:
temperature = 18
raining = True
if temperature < 10:
print("Coat")
elif raining:
if temperature >= 15:
print("Umbrella")
else:
print("Jacket")
else:
print("Walk")What is "Umbrella"?
This is the number of times count is increased, and the final value printed by these nested loops:
count = 0
for i in range(4):
for j in range(i):
count += 1
print(count)What is 6?
The inner loop runs 0 + 1 + 2 + 3 times.
This is the final list printed by the following code, which processes repeated values in their original order:
values = [2, 3, 2, 5, 3, 2]
result = []
for x in values:
if x not in result:
result.append(x)
print(result)What is [2, 3, 5]?
This string is printed when the code keeps only the first character of each consecutive run of identical characters:
text = "aabcccaa"
result = ""
for i in range(len(text)):
if i == 0 or text[i] != text[i - 1]:
result += text[i]
print(result)What is "abca"?
This number is printed by a function that counts places where an element is greater than the one immediately before it:
def mystery(nums):
result = 0
for i in range(1, len(nums)):
if nums[i] > nums[i - 1]:
result += 1
return result
print(mystery([2, 5, 4, 4, 9, 1]))What is 2?