Hackerrank Control Flow and Looping 2

Question 1

What is the output of the following code?
```python
for i in range(10):
    if i % 2 == 0:
        continue
    if i > 6:
        break
    print(i)
```

Accepted Answer

1 3 5

Answer

1 3 5 7

Answer

0 2 4 6

Answer

1 3 5 7 9

Question 2

Which loop construct is most appropriate when you need to iterate over a list and also need the index of each element?

Accepted Answer

for i, item in enumerate(lst)

Answer

for i in range(len(lst))

Answer

for item in lst

Answer

while i < len(lst)

Question 3

What does the `else` clause of a `for` loop execute?

Accepted Answer

Only when the loop completes without a break statement

Answer

Only when the loop body raises an exception

Answer

Only when the loop runs zero iterations

Answer

Every time the loop condition is False

Question 4

What is the output of this code?
```python
x = 5
result = 'positive' if x > 0 else 'negative' if x < 0 else 'zero'
print(result)
```

Accepted Answer

positive

Answer

negative

Answer

zero

Answer

Error

Question 5

Which statement about `while True:` loops is correct?

Accepted Answer

They run indefinitely unless broken by a break or return

Answer

They are syntax errors in Python

Answer

They always run exactly once

Answer

They automatically stop after 100 iterations

Question 6

What is the output of:
```python
count = 0
for i in range(5):
    for j in range(5):
        if i == j:
            count += 1
print(count)
```

Accepted Answer

5

Answer

10

Answer

25

Answer

0

Question 7

What happens when you use `pass` inside an `if` block?

Accepted Answer

It does nothing and execution continues normally

Answer

It exits the current function

Answer

It skips the current iteration of the loop

Answer

It raises a SyntaxError