Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10: error: initializer expression list treated as compound expression user.cpp:10: warning: left-hand operand of comma has no effect user.cpp:10: warning: right-hand operand of comma has no effect user.cpp:11: error: redeclaration of ‘FILE* freopen’ user.cpp:10: error: ‘FILE* freopen’ previously declared here user.cpp:10: warning: unused variable ‘freopen’ user.cpp:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result