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View Compilation Error

0_0_19820698_13310.cpp: In function 'void init(int)':
0_0_19820698_13310.cpp:25:9: error: reference to 'rank' is ambiguous
         rank[i]=0;
         ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp: In function 'void unit(int, int)':
0_0_19820698_13310.cpp:45:8: error: reference to 'rank' is ambiguous
     if(rank[x]<rank[y]){
        ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp:45:16: error: reference to 'rank' is ambiguous
     if(rank[x]<rank[y]){
                ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp:49:12: error: reference to 'rank' is ambiguous
         if(rank[x]==rank[y]) rank[x]++;
            ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp:49:21: error: reference to 'rank' is ambiguous
         if(rank[x]==rank[y]) rank[x]++;
                     ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp:49:30: error: reference to 'rank' is ambiguous
         if(rank[x]==rank[y]) rank[x]++;
                              ^
0_0_19820698_13310.cpp:21:5: note: candidates are: int rank [110]
 int rank[MAX],par[MAX]; 
     ^
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++/vector:60,
                 from 0_0_19820698_13310.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_19820698_13310.cpp: In function 'int main()':
0_0_19820698_13310.cpp:59:30: error: 'a' was not declared in this scope
         for(int i=0;i<n;i++){a
                              ^
0_0_19820698_13310.cpp:60:25: error: 'j' was not declared in this scope
             for(int j=0;j<n;j++){
                         ^


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