Compilare: user.cpp: In function ‘int main()’: user.cpp:30: warning: deprecated conversion from string constant to ‘char*’ user.cpp:45: warning: deprecated conversion from string constant to ‘char*’ user.cpp:38: warning: unused variable ‘remainder’ user.cpp:22: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result