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View Compilation Error

0_0_21400002_15161.cpp:11:38: error: 'long long unsigned int pow [400009]' redeclared as different kind of symbol
 unsigned long long sum[maxn],pow[maxn];
                                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cmath:44:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/random:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:66,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62,
                 from 0_0_21400002_15161.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:151:18: note: previous declaration 'double pow(double, double)'
   double __cdecl pow(double _X,double _Y);
                  ^
0_0_21400002_15161.cpp: In function 'bool insert(int, int, long long int)':
0_0_21400002_15161.cpp:61:20: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     _key*=pow[n-pos];
                    ^
0_0_21400002_15161.cpp:63:15: error: reference to 'hash' is ambiguous
     for(int k=hash[key];k!=-1;k=data[k].next)
               ^
0_0_21400002_15161.cpp:14:5: note: candidates are: int hash [11371111]
 int hash[maxm],lon;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 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_21400002_15161.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_21400002_15161.cpp:75:20: error: reference to 'hash' is ambiguous
     data[lon].next=hash[key];
                    ^
0_0_21400002_15161.cpp:14:5: note: candidates are: int hash [11371111]
 int hash[maxm],lon;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 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_21400002_15161.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_21400002_15161.cpp:76:5: error: reference to 'hash' is ambiguous
     hash[key]=lon;
     ^
0_0_21400002_15161.cpp:14:5: note: candidates are: int hash [11371111]
 int hash[maxm],lon;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 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_21400002_15161.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_21400002_15161.cpp: In function 'void getkey()':
0_0_21400002_15161.cpp:86:35: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
         sum[i]+=(a[i]-'a'+1)*pow[i];
                                   ^
0_0_21400002_15161.cpp: In function 'void gethash()':
0_0_21400002_15161.cpp:101:12: error: reference to 'hash' is ambiguous
     memset(hash,-1,sizeof(hash));
            ^
0_0_21400002_15161.cpp:14:5: note: candidates are: int hash [11371111]
 int hash[maxm],lon;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 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_21400002_15161.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_21400002_15161.cpp:101:27: error: reference to 'hash' is ambiguous
     memset(hash,-1,sizeof(hash));
                           ^
0_0_21400002_15161.cpp:14:5: note: candidates are: int hash [11371111]
 int hash[maxm],lon;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 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_21400002_15161.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_21400002_15161.cpp:119:24: error: 'class std::queue<R>' has no member named 'top'
         int pos=data[q.top().t].pos;
                        ^
0_0_21400002_15161.cpp:120:25: error: 'class std::queue<R>' has no member named 'top'
         int size=data[q.top().t].size;
                         ^
0_0_21400002_15161.cpp:121:29: error: 'class std::queue<R>' has no member named 'top'
         long long ff=data[q.top().t].sum;
                             ^
0_0_21400002_15161.cpp: In function 'int main()':
0_0_21400002_15161.cpp:182:10: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     pow[0]=1;
          ^
0_0_21400002_15161.cpp:184:10: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     pow[i]=pow[i-1]*27;
          ^
0_0_21400002_15161.cpp:184:19: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     pow[i]=pow[i-1]*27;
                   ^


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