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View Compilation Error

0_0_21322332_25203.cpp:7:44: error: 'int pow [26]' redeclared as different kind of symbol
 int num[26][100005], a[26], vis[26], pow[26], sum[26];
                                            ^
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_21322332_25203.cpp:3:
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_21322332_25203.cpp: In function 'int main()':
0_0_21322332_25203.cpp:31:10: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     pow[0] = 1;
          ^
0_0_21322332_25203.cpp:33:14: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
         pow[i] = (pow[i-1]*26) % Q;
              ^
0_0_21322332_25203.cpp:33:26: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
         pow[i] = (pow[i-1]*26) % Q;
                          ^
0_0_21322332_25203.cpp:49:40: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
                 sum[ch[j]-'a'] += pow[j];
                                        ^


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