Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:44:17: error: reference to ‘next’ is ambiguous next[i] = right[a[i][j]]; ^ user.cpp:17:30: note: candidates are: int next [50005] int dp[Vmax] , right[Vmax] , next[Vmax>>1]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/string:40, from /usr/include/c++/4.8/stdexcept:39, from /usr/include/c++/4.8/array:38, from /usr/include/c++/4.8/tuple:39, from /usr/include/c++/4.8/unordered_map:41, from user.cpp:6: /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:57:33: error: reference to ‘next’ is ambiguous for (i = start; i <= N; i = next[i]) ^ user.cpp:17:30: note: candidates are: int next [50005] int dp[Vmax] , right[Vmax] , next[Vmax>>1]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/string:40, from /usr/include/c++/4.8/stdexcept:39, from /usr/include/c++/4.8/array:38, from /usr/include/c++/4.8/tuple:39, from /usr/include/c++/4.8/unordered_map:41, from user.cpp:6: /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:21:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuburi5.in","r",stdin); ^ user.cpp:22:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuburi5.out","w",stdout); ^ user.cpp:24:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &K); ^ user.cpp:32:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i][j]); ^