Compilare: user.cpp: In function ‘void desc(long long int)’: user.cpp:27: warning: unused variable ‘d’ user.cpp: In function ‘int main()’: user.cpp:48: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘long int*’ user.cpp:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result