Compilare: user.cpp: In function ‘void mul2(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t&, uint32_t&, uint32_t&, uint32_t&)’: user.cpp:34:14: warning: unused variable ‘p8’ [-Wunused-variable] uint32_t p8 = a1 * b3; ^ user.cpp: In function ‘int main()’: user.cpp:53:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &T); ^ user.cpp:55:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%llu", &N); ^