Eroare de compilare: user.cpp: In function ‘void add(int, int)’: user.cpp:4:22: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ( x & (x - 1) ^ x ) ^ user.cpp:13:23: note: in expansion of macro ‘zeros’ for (; x <= N; x += zeros(x)) ^ user.cpp: In function ‘int query(int)’: user.cpp:4:22: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ( x & (x - 1) ^ x ) ^ user.cpp:19:22: note: in expansion of macro ‘zeros’ for (; x > 0; x -= zeros(x)) ^ user.cpp: In function ‘int main()’: user.cpp:52:7: error: reference to ‘prev’ is ambiguous prev[j] = i; ^ user.cpp:10:37: note: candidates are: int prev [1000010] int v[NMax], idx[NMax], vidx[NMax], prev[NMax], arb[NMax], T[NMax]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/algorithm:61, from user.cpp:2: /usr/local/include/c++/4.8.0/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:56:37: error: reference to ‘prev’ is ambiguous T[i] = query(vidx[i]) - query(prev[i] - 1) + 1; ^ user.cpp:10:37: note: candidates are: int prev [1000010] int v[NMax], idx[NMax], vidx[NMax], prev[NMax], arb[NMax], T[NMax]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/algorithm:61, from user.cpp:2: /usr/local/include/c++/4.8.0/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 ^