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View Compilation Error

0_0_18091334_27372.cpp: In function 'void dfs2(int, int)':
0_0_18091334_27372.cpp:49:2: error: reference to 'rank' is ambiguous
  rank[x]=++num;
  ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:50:6: error: reference to 'rank' is ambiguous
  kth[rank[x]]=x;
      ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp: In function 'int main()':
0_0_18091334_27372.cpp:128:14: error: reference to 'rank' is ambiguous
       modify(rank[top[u]],rank[u],k,1,n,1);
              ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:128:27: error: reference to 'rank' is ambiguous
       modify(rank[top[u]],rank[u],k,1,n,1);
                           ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:132:14: error: reference to 'rank' is ambiguous
       modify(rank[top[v]],rank[v],k,1,n,1);
              ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:132:27: error: reference to 'rank' is ambiguous
       modify(rank[top[v]],rank[v],k,1,n,1);
                           ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:137:13: error: reference to 'rank' is ambiguous
      modify(rank[v],rank[u],k,1,n,1);
             ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:137:21: error: reference to 'rank' is ambiguous
      modify(rank[v],rank[u],k,1,n,1);
                     ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:139:17: error: reference to 'rank' is ambiguous
     else modify(rank[u],rank[v],k,1,n,1);
                 ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_27372.cpp:139:25: error: reference to 'rank' is ambiguous
     else modify(rank[u],rank[v],k,1,n,1);
                         ^
0_0_18091334_27372.cpp:10:72: note: candidates are: int rank [50001]
 int n,m,p,a[MAXN],u,v,fa[MAXN],dep[MAXN],siz[MAXN],son[MAXN],top[MAXN],rank[MAXN],kth[MAXN],num,k;
                                                                        ^
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_18091334_27372.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_18091334_2


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