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View Compilation Error

0_0_28915720_18392.cpp: In function 'int main()':
0_0_28915720_18392.cpp:23:74: error: 'min' was not declared in this scope
                   dp[i][j]=min(dp[i][j],dp[i-1][x]+abs(a[i][j]-a[i-1][x]));
                                                                          ^
0_0_28915720_18392.cpp:23:74: note: suggested alternative:
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++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_28915720_18392.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:240:5: note:   'std::min'
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^
0_0_28915720_18392.cpp:27:51: error: 'min' was not declared in this scope
         for(int i=1;i<k;i++)ans=min(ans,dp[n-1][i]);
                                                   ^
0_0_28915720_18392.cpp:27:51: note: suggested alternative:
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++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_28915720_18392.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:240:5: note:   'std::min'
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^


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