Eroare de compilare: user.cpp: In function ‘void rotate90(int&, int&)’: user.cpp:32:30: error: ‘memset’ was not declared in this scope memset(aux, 0, sizeof aux); ^ user.cpp:39:30: error: ‘memcpy’ was not declared in this scope memcpy(a, aux, sizeof aux); ^ user.cpp: In function ‘void calculate_up(int, int, int*)’: user.cpp:49:45: error: ‘memset’ was not declared in this scope memset(ext_left, 0, sizeof(ext_left)); ^ user.cpp: In function ‘int main()’: user.cpp:104:28: error: ‘memset’ was not declared in this scope memset(up, 0, sizeof up); ^