Eroare de compilare: user.cpp: In function ‘int dist(long long int, long long int, long long int, long long int)’: user.cpp:21:63: warning: unused variable ‘vl’ [-Wunused-variable] long long dst = (x1 - x2)*(x1 - x2) + (y1 - y2)*(y1 - y2),vl = 0; ^ user.cpp: In function ‘void solveA()’: user.cpp:51:13: error: reference to ‘next’ is ambiguous next[i] = i+1; ^ user.cpp:12:13: note: candidates are: int next [100005] int h[Lmax],next[Lmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:53:13: error: reference to ‘next’ is ambiguous next[i] = S.top(); ^ user.cpp:12:13: note: candidates are: int next [100005] int h[Lmax],next[Lmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:62:33: error: reference to ‘next’ is ambiguous totalA += dist(pz,h[pz],next[pz],h[next[pz]]); ^ user.cpp:12:13: note: candidates are: int next [100005] int h[Lmax],next[Lmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:62:44: error: reference to ‘next’ is ambiguous totalA += dist(pz,h[pz],next[pz],h[next[pz]]); ^ user.cpp:12:13: note: candidates are: int next [100005] int h[Lmax],next[Lmax]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: