View Compilation Error

0_0_23935646_22678.cpp: In function 'int main()':
0_0_23935646_22678.cpp:58:13: error: 'cout' was not declared in this scope
             cout<<sum[i]<<endl;  
             ^
0_0_23935646_22678.cpp:58:27: error: 'endl' was not declared in this scope
             cout<<sum[i]<<endl;  
                           ^