Compilare: user.cpp: In function ‘void Evaluare(int)’: user.cpp:51:17: warning: unused variable ‘Help’ [-Wunused-variable] int Help; ^ user.cpp:58:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] current[*P].second+=sgn*type,current[*P].first=true; ^ user.cpp:58:52: warning: array subscript has type ‘char’ [-Wchar-subscripts] current[*P].second+=sgn*type,current[*P].first=true; ^ user.cpp: In function ‘int main()’: user.cpp:17:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie3.in","r",stdin); ^ user.cpp:18:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie3.out","w",stdout); ^ user.cpp:20:8: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(S); ^ /tmp/ccacfN2I.o: In function `main': user.cpp:(.text.startup+0x53): warning: the `gets' function is dangerous and should not be used.