Compilare: user.cpp: In constructor ‘Graph::Graph(int)’: user.cpp:14:32: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(ap, 0, sizeof ap); ^ user.cpp: In member function ‘void Graph::solve(std::ofstream&)’: user.cpp:42:34: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(ap , 0, sizeof(ap)); ^