View Compilation Error

0_0_29857453_30837.cpp: In function 'int caozuo1()':
0_0_29857453_30837.cpp:8:5: error: 'cout' was not declared in this scope
     cout<<result;
     ^
0_0_29857453_30837.cpp:8:5: note: suggested alternative:
In file included from 0_0_29857453_30837.cpp:3:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^