Learning how pointers work and being able to use them without constantly getting seg faults. *Bonus round. Learning how to find seg faults yourself without posting “how to use pointar” on stackoverflow and getting downvoted to hell. GDB is an amazing tool. **Bonus round 2. Learning how to properly search on stackoverflow, and how to properly ask questions for the very rare times when you do actually have to ask a question on there. Have fun and welcome to C!
Oh, yeah one more thing! I just found out that I'm a “special snowflake” of Reddit. No offense but it seems like you're taking all things that are wrong, and making an overall opinion. For example on every article discussing stack overflow, and the same is true on all things that I want to talk about, or find interesting or even useful. I'm sure if I did the same I'd get down voted for all of these. Why did you make this video? Is it you? Is it /u/Dongles_? I'd honestly like you to ask these questions. Bonus round, question 3. Bonus round, question 4. Bonus round, question 5. Bonus round, question 6.