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View Compilation Error

0_0_36662911_32404.cpp: In function 'int find(int)':
0_0_36662911_32404.cpp:29:2: error: reference to 'rank' is ambiguous
  rank[x]=(rank[x]+rank[a])%3;
  ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp:29:11: error: reference to 'rank' is ambiguous
  rank[x]=(rank[x]+rank[a])%3;
           ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp:29:19: error: reference to 'rank' is ambiguous
  rank[x]=(rank[x]+rank[a])%3;
                   ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp: In function 'void UnionSet(int, int, int)':
0_0_36662911_32404.cpp:76:2: error: reference to 'rank' is ambiguous
  rank[b]=(rank[x]+d+3-rank[y])%3;
  ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp:76:11: error: reference to 'rank' is ambiguous
  rank[b]=(rank[x]+d+3-rank[y])%3;
           ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp:76:23: error: reference to 'rank' is ambiguous
  rank[b]=(rank[x]+d+3-rank[y])%3;
                       ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp: In function 'int istrue(int, int, int)':
0_0_36662911_32404.cpp:84:13: error: reference to 'rank' is ambiguous
  if((t-1)==(rank[y]+3-rank[x])%3) return 1;
             ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp:84:23: error: reference to 'rank' is ambiguous
  if((t-1)==(rank[y]+3-rank[x])%3) return 1;
                       ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_36662911_32404.cpp: In function 'int main()':
0_0_36662911_32404.cpp:93:2: error: reference to 'rank' is ambiguous
  rank[i]=0;
  ^
0_0_36662911_32404.cpp:22:15: note: candidates are: int rank [50002]
 int father[M],rank[M],num,total;
               ^
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++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_36662911_32404.cpp:1:
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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