Compilare: user.cpp: In function ‘void citire()’: user.cpp:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void sortTop(std::stack<int, std::deque<int, std::allocator<int> > >&, std::vector<int, std::allocator<int> >*, int)’: user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void earliest()’: user.cpp:87: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void latest()’: user.cpp:109: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:124: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:125: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result