I had two interviews in one day. Each lasted 45 minutes, with a senior developer and a hiring manager. With the manager, we started with behavioral questions. With the senior developer, we started with challenges, and in the last few minutes, we had behavioral questions.

2 rounds interview.

1st round:

1. Tell me about yourself.
2. What is merge sort?
3. Why do you like React?
4. Why did you decide to be a SWE.

Challenge: Given a string, find the first duplicated character in the string.

2nd round:

1. Questions about experience.

Challenge:

1. Cycles in a linked list.
2. Given the middle node of a linked list, delete this node and return the list (you have access to the head).
3. Something with a binary tree.