I just finished my New Grad SWE Interview and I'm not sure how it went.

1. Valid Palindrome with removing one character - explained brute force and optimal solution and solved it optimally, follow up: asked me Valid Palindrome with removing k characters but just told me to say my approach (not code it) and asked for time complexity
2. LRU Cache - honestly this tripped me up a bit but I was able to implement most of it in the time complexity asked O(1), however I ended up confusing myself a bit with the hashmap and once the interviewer pointed it out, I was able to correct myself for the most part.

I honeslty thought I failed this interview because of the second question so having my second technical interview right after this wasn't the best.

1. Range Sum of BST- I solved it brute force (visiting all the nodes in the tree) and then solved it again optimally.
2. Number of Islands but you have to find the "properties" in the island bordering water. I explained the optimal approach but turns out I didn't fully understand the problem. I wrote the code out and missed one edge case (if the property is at the edge of the graph it counts as a property bordering water). After I wrote my code we walked through a test case but didn't have time to finish as we were almost out of time. Right after the interview ended, I realized my mistake.

Behavioral - I did this round a few weeks ago and don't remember much but it seemed to go well.

Overall, I am not confident I passed and I feel like my nerves ended up getting the best of me. What are your guys thoughts and how long do they usually take to reach out?