Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:33: warning: too many arguments for format user.cpp:34: error: expected ‘;’ before ‘{’ token user.cpp:48: warning: operation on ‘n’ may be undefined user.cpp:48: error: expected primary-expression at end of input user.cpp:48: error: expected ‘;’ at end of input user.cpp:48: error: expected primary-expression at end of input user.cpp:48: error: expected ‘)’ at end of input user.cpp:48: error: expected statement at end of input user.cpp:30: warning: unused variable ‘operatie’ user.cpp:30: warning: unused variable ‘valoare’ user.cpp:48: error: expected ‘}’ at end of input user.cpp:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:32: 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