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View Compilation Error

0_0_18306301_763.cpp: In function 'void init()':
0_0_18306301_763.cpp:33:9: error: reference to 'rank' is ambiguous
         rank[i]=0;
         ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18306301_763.cpp: In function 'void unite(int, int)':
0_0_18306301_763.cpp:46:8: error: reference to 'rank' is ambiguous
     if(rank[x]>rank[y])
        ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18306301_763.cpp:46:16: error: reference to 'rank' is ambiguous
     if(rank[x]>rank[y])
                ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18306301_763.cpp:51:12: error: reference to 'rank' is ambiguous
         if(rank[x]==rank[y])
            ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18306301_763.cpp:51:21: error: reference to 'rank' is ambiguous
         if(rank[x]==rank[y])
                     ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18306301_763.cpp:52:13: error: reference to 'rank' is ambiguous
             rank[y]++;
             ^
0_0_18306301_763.cpp:12:15: note: candidates are: int rank [510]
 int par[MAXN],rank[MAXN];
               ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:70,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_18306301_763.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^


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