Python Operators and Expressions 3

Question 1

What is the result of `5 // -2` in Python?

Accepted Answer

-3

Answer

Floor division rounds toward negative infinity, so `5 // -2` is `-2.5` rounded down to `-3`.

Question 2

What does the bitwise XOR operator `^` return for `6 ^ 3`?

Accepted Answer

5

Answer

`6` is `110` and `3` is `011` in binary; XOR gives `101`, which is `5`.

Question 3

What is the result of `[1, 2] + [3, 4]`?

Accepted Answer

[1, 2, 3, 4]

Answer

The `+` operator on lists performs concatenation, combining both lists into a single new list `[1, 2, 3, 4]`.

Question 4

What is the precedence order (highest to lowest) for these operators: `+`, `**`, `*`?

Accepted Answer

**, *, +

Answer

Python's operator precedence places `**` (exponentiation) highest, then `*` (multiplication), then `+` (addition).

Question 5

What does `x = 10; x &= 6` result in for `x`?

Accepted Answer

2

Answer

`10` is `1010` and `6` is `0110` in binary; bitwise AND gives `0010`, which is `2`.

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