View Compilation Error

0_0_31640728_10534.cpp: In function 'int rank(Treap*, int)':
0_0_31640728_10534.cpp:82:18: error: reference to 'rank' is ambiguous
  if(d==0) return rank(p->ch[0],x);
                  ^
0_0_31640728_10534.cpp:76:5: note: candidates are: int rank(Treap*, int)
 int rank(Treap* p,int x)//查询排名 
     ^
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/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_31640728_10534.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_31640728_10534.cpp:83:9: error: reference to 'rank' is ambiguous
  return rank(p->ch[1],x)+s+1;
         ^
0_0_31640728_10534.cpp:76:5: note: candidates are: int rank(Treap*, int)
 int rank(Treap* p,int x)//查询排名 
     ^
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/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_31640728_10534.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_31640728_10534.cpp: In function 'int main()':
0_0_31640728_10534.cpp:109:5: error: expected primary-expression before '%' token
    {%
     ^
0_0_31640728_10534.cpp:109:5: error: expected primary-expression at end of input
0_0_31640728_10534.cpp:109:5: error: expected '}' at end of input
0_0_31640728_10534.cpp:109:5: error: expected '}' at end of input
0_0_31640728_10534.cpp:109:5: error: expected '}' at end of input
0_0_31640728_10534.cpp:109:5: error: expected '}' at end of input