[_sh]

As well as jotux's excellent reply, I'd like to add that clint, valgrind and friends help out a lot when starting out with C. Learning to use these tools well (by using them all the time), will teach you a lot about the language.

I also do a lot of embedded C, and can confirm that dynamic allocation is rare, so why not try restructuring your program to avoid it? It's good practice and will sharpen your skills by raising all sorts of questions like why dynamic allocation is discouraged in embedded systems in the first place, and what alternatives there are, and how to use a profiler to compare different trade-offs. Heaps of exploratory fun to be had!

And hey, Graph-Reply is really cool, and so are space robots.