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View Compilation Error

0_0_21543239_18732.cpp:6:25: error: 'int exp [1000]' redeclared as different kind of symbol
 int tired[1000],exp[1000];
                         ^
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++/x86_64-w64-mingw32/bits/stdc++.h:41,
                 from 0_0_21543239_18732.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:148:18: note: previous declaration 'double exp(double)'
   double __cdecl exp(double _X);
                  ^
0_0_21543239_18732.cpp: In function 'void solve()':
0_0_21543239_18732.cpp:20:70: error: no matching function for call to 'max(int&, double (*)(double))'
                 DP[u][v]=std::max(DP[u][v],DP[u-tired[i]][v-1]+exp[i]);
                                                                      ^
0_0_21543239_18732.cpp:20:70: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_21543239_18732.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:217:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:217:5: note:   template argument deduction/substitution failed:
0_0_21543239_18732.cpp:20:70: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'double (*)(double)')
                 DP[u][v]=std::max(DP[u][v],DP[u-tired[i]][v-1]+exp[i]);
                                                                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_21543239_18732.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:261:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:261:5: note:   template argument deduction/substitution failed:
0_0_21543239_18732.cpp:20:70: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'double (*)(double)')
                 DP[u][v]=std::max(DP[u][v],DP[u-tired[i]][v-1]+exp[i]);
                                                                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_21543239_18732.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3449:5: note: template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3449:5: note:   template argument deduction/substitution failed:
0_0_21543239_18732.cpp:20:70: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
                 DP[u][v]=std::max(DP[u][v],DP[u-tired[i]][v-1]+exp[i]);
                                                                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_21543239_18732.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3454:5: note: template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3454:5: note:   template argument deduction/substitution failed:
0_0_21543239_18732.cpp:20:70: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
                 DP[u][v]=std::max(DP[u][v],DP[u-tired[i]][v-1]+exp[i]);
                                                                      ^


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