Compilare: user.cpp: In function ‘std::queue<char, std::deque<char, std::allocator<char> > > BuildRPF(char*)’: user.cpp:83: warning: array subscript has type ‘char’ user.cpp:83: warning: array subscript has type ‘char’ user.cpp: In function ‘std::vector<int, std::allocator<int> > GetVariables(char*)’: user.cpp:103: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:144: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:145: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:147: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:155: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result