Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp: At global scope: user.cpp:88: error: expected constructor, destructor, or type conversion before ‘(’ token user.cpp:90: error: expected unqualified-id before ‘return’ user.cpp:92: error: expected declaration before ‘}’ token