I used to think a coding interview was simple:

Get the problem.
Find the algorithm.
Write correct code.

But the more interview experiences I read, the more I notice that many people do not fail because they know zero DSA.

They get stuck because they have to do everything at once:

• understand an unfamiliar problem
• ask the right questions
• explain a half-formed idea out loud
• recover when the first approach is wrong
• write clean code under time pressure
• handle follow-ups without panicking

That is a very different skill from solving quietly on LeetCode.

For me, the hardest part would probably be explaining my thought process while I am still figuring it out. I can think through a problem, but turning that messy internal process into a clear conversation is its own challenge.

So I’m curious:

What is the hardest part of a coding interview for you that has nothing to do with knowing the algorithm?

Not the problem itself.

The interview part.