View Compilation Error

0_0_28208983_9107.cpp: In function 'int main()':
0_0_28208983_9107.cpp:21:40: error: 'lower_bound' was not declared in this scope
    int b = lower_bound(aa, aa + n, a[j]);
                                        ^
0_0_28208983_9107.cpp:21:40: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_28208983_9107.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:2022:5: note:   'std::lower_bound'
     lower_bound(_ForwardIterator __first, _ForwardIterator __last,
     ^