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View Compilation Error

0_0_28488547_10540.cpp:12:39: error: 'int cos [105][10005]' redeclared as different kind of symbol
 int a[N][M],b[N][M],sum[N][M],cos[N][M],dp[N][M];
                                       ^
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_28488547_10540.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:139:18: note: previous declaration 'double cos(double)'
   double __cdecl cos(double _X);
                  ^
0_0_28488547_10540.cpp: In function 'int main()':
0_0_28488547_10540.cpp:51:9: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
    cos[i][0]=0;
         ^
0_0_28488547_10540.cpp:54:10: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     cos[i][j]=cos[i][j-1]+b[i][j];
          ^
0_0_28488547_10540.cpp:54:20: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     cos[i][j]=cos[i][j-1]+b[i][j];
                    ^
0_0_28488547_10540.cpp:71:23: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     while(rp>lp&&cos[i][j]-cos[i][f[lp].pos]>k)lp++;
                       ^
0_0_28488547_10540.cpp:71:33: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     while(rp>lp&&cos[i][j]-cos[i][f[lp].pos]>k)lp++;
                                 ^
0_0_28488547_10540.cpp:85:23: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     while(rp>lp&&cos[i][f[lp].pos]-cos[i][j]>k)lp++;
                       ^
0_0_28488547_10540.cpp:85:41: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
     while(rp>lp&&cos[i][f[lp].pos]-cos[i][j]>k)lp++;
                                         ^


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