Easy Memory Question 48 of 208

What is the rule of zero?

C++ interview set · Speak this in 60–90 seconds · Faridabad & Delhi NCR

IdeaMemory

HowWhat happens inside

Why they askShows real use

Prefer types whose members manage themselves so you write no special destructor or copy ops.

Why interviewers care about Memory:

Memory questions separate people

who only read docs from people who shipped.

Keep it short, concrete,

and tied to C++ work.

Stay structured

Name the idea, why it exists, then one short example.

Close cleanly

End with when you use it and one common pitfall.

Before you speak the answer, walk the interviewer through these steps:

1
Prefer types whose members
manage themselves so you write no special destructor or copy ops.
2
unique_ptr and containers get
you there.
3
Custom ownership triggers rule
of five.
4
Give an example
One tiny concrete case you can say aloud.
5
Common mistake
What juniors usually get wrong.
6
Close
When you pick this over the alternative.

Here's a short line you can speak, broken into clear beats:

Say this line

“unique_ptr and containers get you there.”

Break into beats

uniqueptrandcontainersgetyou

Speaking order

2987408337471632900

Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Prefer types whose members manage themselves so you write no special destructor or copy ops. unique_ptr and containers get you there.