I can’t remember if i used them in freecodecamp. But i don’t think i did.
How are you using an array as a replacement for a linked list. Please tell me more. I’m intrigued.
If you’re really interested in structures try checking out CS50, i know i’m preaching but i finished their course today and i’m blown away by how good it is. I feel even bad for not having the money to pay for the certificate right now.