Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:54:49: error: no matching function for call to ‘make_pair(long long int&, long long int&)’ v.push_back(make_pair<long long,long long>(x,y)); ^ user.cpp:54:49: note: candidate is: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_pair.h:276:5: note: template<class _T1, class _T2> constexpr std::pair<typename std::__decay_and_strip<_Tp>::__type, typename std::__decay_and_strip<_T2>::__type> std::make_pair(_T1&&, _T2&&) make_pair(_T1&& __x, _T2&& __y) ^ /usr/include/c++/4.8/bits/stl_pair.h:276:5: note: template argument deduction/substitution failed: user.cpp:54:49: note: cannot convert ‘x’ (type ‘long long int’) to type ‘long long int&&’ v.push_back(make_pair<long long,long long>(x,y)); ^