View Compilation Error

0_0_25594701_28728.cpp: In function 'int main()':
0_0_25594701_28728.cpp:17:9: error: 'cout' was not declared in this scope
         cout<<endl;
         ^
0_0_25594701_28728.cpp:17:15: error: 'endl' was not declared in this scope
         cout<<endl;
               ^