Eroare de compilare in evaluator: user.cpp:41: error: 'pi' is not a template user.cpp: In function 'void solve()': user.cpp:94: error: request for member 'first' in 'V.std::vector<_Tp, _Alloc>::operator[] [with _Tp = std::pair<int, int>, _Alloc = std::allocator<std::pair<int, int> >](((unsigned int)i))->std::pair<int, int>::first', which is of non-class type 'int' user.cpp:95: error: request for member 'second' in 'V.std::vector<_Tp, _Alloc>::operator[] [with _Tp = std::pair<int, int>, _Alloc = std::allocator<std::pair<int, int> >](((unsigned int)i))->std::pair<int, int>::first', which is of non-class type 'int' user.cpp:124: error: request for member 'first' in 'V.std::vector<_Tp, _Alloc>::operator[] [with _Tp = std::pair<int, int>, _Alloc = std::allocator<std::pair<int, int> >](((unsigned int)i))->std::pair<int, int>::first', which is of non-class type 'int' user.cpp:125: error: request for member 'second' in 'V.std::vector<_Tp, _Alloc>::operator[] [with _Tp = std::pair<int, int>, _Alloc = std::allocator<std::pair<int, int> >](((unsigned int)i))->std::pair<int, int>::first', which is of non-class type 'int' /usr/include/c++/4.2/bits/stl_pair.h: In constructor 'std::pair<_T1, _T2>::pair(const std::pair<_U1, _U2>&) [with _U1 = std::pair<int, int>, _U2 = long long int, _T1 = int, _T2 = int]': user.cpp:64: instantiated from here /usr/include/c++/4.2/bits/stl_pair.h:90: error: cannot convert 'const std::pair<int, int>' to 'int' in initialization