View Compilation Error

0_0_36585761_23281.cpp: In function 'int main()':
0_0_36585761_23281.cpp:27:22: error: 'min' was not declared in this scope
         g=min(g,31500);
                      ^
0_0_36585761_23281.cpp:27:22: 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++/string:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bitset:47,
                 from 0_0_36585761_23281.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)
     ^