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View Compilation Error

0_0_29454149_5183.cpp:9:13: error: 'int sin [2005]' redeclared as different kind of symbol
 int sin[maxn];//每个人单独买票时间
             ^
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_29454149_5183.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:138:18: note: previous declaration 'double sin(double)'
   double __cdecl sin(double _X);
                  ^
0_0_29454149_5183.cpp: In function 'int main()':
0_0_29454149_5183.cpp:20:30: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
             scanf("%d",&sin[i]);
                              ^
0_0_29454149_5183.cpp:24:20: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
         dp[1]=sin[1];
                    ^
0_0_29454149_5183.cpp:26:36: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
             dp[i]=min(dp[i-1]+sin[i],dp[i-2]+dou[i]);
                                    ^


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