Hackerrank Built-in Functions and Lambdas 5

Question 1

What does `divmod(17, 5)` return?

Accepted Answer

(3, 2)

Answer

divmod returns a tuple of (quotient, remainder): 17 // 5 = 3 and 17 % 5 = 2.

Question 2

Which built-in function returns an object's memory address?

Accepted Answer

id()

Answer

id() returns the identity (memory address) of an object in CPython.

Question 3

What does `list(reversed([1,2,3,4]))` return?

Accepted Answer

[4, 3, 2, 1]

Answer

reversed() returns an iterator over the sequence in reverse order; list() materializes it.

Question 4

What is the output of `pow(2, 10)`?

Accepted Answer

1024

Answer

pow(2, 10) computes 2 raised to the power 10, which is 1024.

Question 5

What does `hash('hello')` return in Python?

Accepted Answer

An integer that may vary between runs

Answer

hash() returns an integer, but Python randomizes string hashes by default, so the value may differ between runs.

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