Eroare de compilare: user.cpp: In function ‘void afisare(int, int)’: user.cpp:43:17: error: reference to ‘prev’ is ambiguous afisare(prev[x][y].x, prev[x][y].y); ^ user.cpp:15:7: note: candidates are: coord prev [110][110] coord prev[MAXN][MAXN]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/deque:60, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /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:43:31: error: reference to ‘prev’ is ambiguous afisare(prev[x][y].x, prev[x][y].y); ^ user.cpp:15:7: note: candidates are: coord prev [110][110] coord prev[MAXN][MAXN]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/deque:60, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /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 ‘void sol()’: user.cpp:65:21: error: reference to ‘prev’ is ambiguous prev[nou.x][nou.y] = coord(act.x, act.y); ^ user.cpp:15:7: note: candidates are: coord prev [110][110] coord prev[MAXN][MAXN]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/deque:60, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /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 ‘void citire()’: user.cpp:21:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:24:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i][j]); ^ user.cpp:25:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k);