> The only caveat here is that most of the examples are written in C, which can be troublesome if you don’t know or have forgotten about pointers.
It is hard for me to take advice seriously from someone who says this.
It is hard for me to take advice seriously from someone who says this.
"Whyyy is this variable, ★★p a pointer to a pointer?! p is never referenced in the function, so why are we two levels of indirection down?!" I didn't realize at the time that pointers are copied by value in C, so in order to modify the pointer you need to give the function a pointer to it.
I guess it was worthwhile, though, because it encouraged me to play around with C[1] a bit in order to grok it.
P.S. Sorry for those stupid stars, HN kept eating my highlights. Any way to avoid that?
int **p; /* I used 4 spaces in front of "int" */Also, anyone learning data structures should know pointers or at least references as a prerequisite. You can't reason about efficiency in data structures knowing only the high level comfort of Python.