If you want to learn about ML-coding, deeplearning.ai has excellent free "short courses."
If you want to learn about to code data structures and algorithms, aka "DSA," leetcode.com is your friend. Until you actually schedule a big-tech interview, the free version is more than enough.
If you want to learn about to code data structures and algorithms, aka "DSA," leetcode.com is your friend. Until you actually schedule a big-tech interview, the free version is more than enough.