Eroare de compilare: main.cpp: In function 'void init()': main.cpp:28:9: error: reference to 'prev' is ambiguous prev[i] = n+1; ^~~~ main.cpp:12:42: note: candidates are: int prev [100010] int aib[DIM],Left[DIM],Right[DIM],v[DIM],prev[DIM]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:217:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^~~~ main.cpp: In function 'int main()': main.cpp:68:21: error: reference to 'prev' is ambiguous update (prev[v[i]],-1); /// trebuie sa demarchez pt ca pt un element ma intereseaza doar o singura aparitie ^~~~ main.cpp:12:42: note: candidates are: int prev [100010] int aib[DIM],Left[DIM],Right[DIM],v[DIM],prev[DIM]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:217:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^~~~ main.cpp:69:13: error: reference to 'prev' is ambiguous prev[v[i]] = i; /// ultima aparitie a lui v[i]; ^~~~ main.cpp:12:42: note: candidates are: int prev [100010] int aib[DIM],Left[DIM],Right[DIM],v[DIM],prev[DIM]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:217:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^~~~ main.cpp:71:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<L[i].size();j++){ ~^~~~~~~~~~~~ Non zero exit status: 1