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View Compilation Error

0_0_14954448_20183.cpp:12:10: error: 'LL pow [55]' redeclared as different kind of symbol
 LL pow[55];
          ^
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_14954448_20183.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_14954448_20183.cpp: In function 'LL change(std::vector<int>)':
0_0_14954448_20183.cpp:18:23: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   c += p[i]*pow[sz-i-1];
                       ^
0_0_14954448_20183.cpp: In function 'int main()':
0_0_14954448_20183.cpp:67:7: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  pow[0] = 1;
       ^
0_0_14954448_20183.cpp:68:34: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  for(int i = 1;i <= 32;i++) pow[i] = 2*pow[i-1];
                                  ^
0_0_14954448_20183.cpp:68:47: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  for(int i = 1;i <= 32;i++) pow[i] = 2*pow[i-1];
                                               ^


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