View Compilation Error

0_0_34473505_18733.cpp: In function 'int main()':
0_0_34473505_18733.cpp:10:12: error: 'cin' was not declared in this scope
     int T; cin >> T;
            ^
0_0_34473505_18733.cpp:13:29: error: 'fill' was not declared in this scope
         fill(a, a + N + 5, 0);
                             ^
0_0_34473505_18733.cpp:24:13: error: 'cout' was not declared in this scope
             cout << a[i] << ' ';
             ^
0_0_34473505_18733.cpp:26:9: error: 'cout' was not declared in this scope
         cout << '\n';
         ^
0_0_34473505_18733.cpp:27:15: error: 'exit' was not declared in this scope
         exit(0);
               ^