View Compilation Error

0_0_14204659_26458.cpp:1:1: error: 'include' does not name a type
 include<iostream>  
 ^
0_0_14204659_26458.cpp: In function 'int main()':
0_0_14204659_26458.cpp:33:11: error: 'cin' was not declared in this scope
     while(cin>>n>>m)  
           ^
0_0_14204659_26458.cpp:42:23: error: 'sort' was not declared in this scope
         sort(a,a+k,cmp);  
                       ^
0_0_14204659_26458.cpp:42:23: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_14204659_26458.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:4705:5: note:   'std::sort'
     sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
     ^
0_0_14204659_26458.cpp:57:13: error: 'cout' was not declared in this scope
             cout<<Max<<endl;  
             ^
0_0_14204659_26458.cpp:57:24: error: 'endl' was not declared in this scope
             cout<<Max<<endl;  
                        ^