Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:48:25: error: reference to ‘prev’ is ambiguous prev[i+1][j+dx[k]][p+dy[k]]=k; ^~~~ user.cpp:12:68: note: candidates are: int prev [60][60][60] int a[NMAX][NMAX][NMAX],dp[NMAX][NMAX][NMAX],ind[NMAX][NMAX][NMAX],prev[NMAX][NMAX][NMAX]; ^~~~ 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/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:52, from user.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 ^~~~ user.cpp:68:16: error: reference to ‘prev’ is ambiguous int k1=prev[n1][J1][p1]; ^~~~ user.cpp:12:68: note: candidates are: int prev [60][60][60] int a[NMAX][NMAX][NMAX],dp[NMAX][NMAX][NMAX],ind[NMAX][NMAX][NMAX],prev[NMAX][NMAX][NMAX]; ^~~~ 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/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:52, from user.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 ^~~~