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View Compilation Error

0_0_18361892_26295.cpp: In function 'int LCA(int, int)':
0_0_18361892_26295.cpp:39:27: error: reference to 'next' is ambiguous
    if(match[x] != -1) x = next[match[x]];
                           ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp: In function 'void group(int, int)':
0_0_18361892_26295.cpp:53:25: error: reference to 'next' is ambiguous
   int b = match[a], c = next[b];
                         ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:54:20: error: reference to 'next' is ambiguous
   if(find(c) != p) next[c] = b;
                    ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp: In function 'void aug(int)':
0_0_18361892_26295.cpp:64:3: error: reference to 'next' is ambiguous
   next[i] = -1, mark[i] = 0, vis[i] = -1, fa[i] = i;
   ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:78:22: error: reference to 'next' is ambiguous
     if(find(x) != r) next[x] = y;
                      ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:79:22: error: reference to 'next' is ambiguous
     if(find(y) != r) next[y] = x;
                      ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:84:5: error: reference to 'next' is ambiguous
     next[y] = x;
     ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:86:14: error: reference to 'next' is ambiguous
      int v = next[u];
              ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^
0_0_18361892_26295.cpp:94:5: error: reference to 'next' is ambiguous
     next[y] = x;
     ^
0_0_18361892_26295.cpp:20:12: note: candidates are: int next [230]
 int fa[N], next[N], match[N], vis[N], mark[N];
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:61,
                 from 0_0_18361892_26295.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^


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