I can't speak for your friends, but while I had zero problems with pointers conceptually, I still had trouble using them in C. The problem wasn't the simple ca

I can't speak for your friends, but while I had zero problems with pointers conceptually, I still had trouble using them in C. The problem wasn't the simple case of declaring a pointer and taking its reference, the difficulty came when the programs got complex and required agreement between function declarations, actual parameters in calls, and use within the functions.