Hackerrank Control Flow and Looping 3

Question 1

What is the output of:
```python
for i in range(3):
    print(i)
else:
    print('done')
```

Accepted Answer

0 1 2 done

Answer

0 1 2

Answer

done

Answer

0 1 2 3 done

Question 2

Which of the following creates an infinite loop?

Accepted Answer

while 1 == 1: pass

Answer

for i in range(0): pass

Answer

for i in []: pass

Answer

while False: pass

Question 3

What is the result of this nested conditional?
```python
a, b = 3, 7
if a > b:
    print('A')
elif a == b:
    print('B')
elif a < b:
    print('C')
else:
    print('D')
```

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 4

How many times does 'hello' print?
```python
i = 10
while i > 0:
    print('hello')
    i -= 3
```

Accepted Answer

4

Answer

3

Answer

10

Answer

Infinite times

Question 5

What does `zip()` return when used with two lists of different lengths in a for loop?

Accepted Answer

It stops at the shorter list's length

Answer

It raises an IndexError

Answer

It pads the shorter list with None

Answer

It repeats the shorter list

Question 6

What is the output of:
```python
for x in range(1, 6, 2):
    print(x, end=' ')
```

Accepted Answer

1 3 5

Answer

1 2 3 4 5

Answer

2 4

Answer

1 3 5 7

Question 7

Which is the correct way to use a `for` loop to iterate in reverse over a list `lst`?

Accepted Answer

Both A and B are correct

Answer

for i in lst[-1:0:-1]:

Answer

for i in reversed(lst):

Answer

for i in lst.reverse():