Borderou de evaluare (job #427679)

Eroare de compilare: user.cpp: In member function ‘interval heap::pop()’: user.cpp:62:18: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] user.cpp: In function ‘int main()’: user.cpp:118:12: error: reference to ‘cin’ is ambiguous user.cpp:11:10: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:127:19: error: reference to ‘cin’ is ambiguous user.cpp:11:10: error: candidates are: std::ifstream cin /usr/include/c++/4.6/iostream:61:18: error: std::istream std::cin user.cpp:144:5: error: reference to ‘cout’ is ambiguous user.cpp:12:10: error: candidates are: std::ofstream cout /usr/include/c++/4.6/iostream:62:18: error: std::ostream std::cout