Eroare de compilare: user.cpp: In function ‘int bfs()’: user.cpp:28:30: error: reference to ‘prev’ is ambiguous q.push(Sou); mark[Sou]=1,prev[Sou]=Sou; ^ user.cpp:24:5: note: candidates are: int prev [22500] int prev[Nmax*Nmax]; ^ 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/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp:31:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[x].size();i++){ ^ user.cpp:34:17: error: reference to ‘prev’ is ambiguous prev[G[x][i]]=x; ^ user.cpp:24:5: note: candidates are: int prev [22500] int prev[Nmax*Nmax]; ^ 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/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp: In function ‘int addpath(int)’: user.cpp:43:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[x].size();i++) if(G[x][i]==Dest) ipos=i; ^ user.cpp:47:31: error: reference to ‘prev’ is ambiguous much = min( much , C[ prev[p] ][ (mark[p]-1) ] ); ^ user.cpp:5:24: note: in definition of macro ‘min’ #define min(a,b) ((a)<(b)?(a):(b)) ^ user.cpp:24:5: note: candidates are: int prev [22500] int prev[Nmax*Nmax]; ^ 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/ios:40,