View Compilation Error

0_0_19881295_13285.cpp: In function 'int main()':
0_0_19881295_13285.cpp:8:12: error: 'cin' was not declared in this scope
     while (cin >> n) {
            ^
0_0_19881295_13285.cpp:10:36: error: 'sqrt' was not declared in this scope
         double square_root = sqrt(n);
                                    ^
0_0_19881295_13285.cpp:13:13: error: 'cout' was not declared in this scope
             cout << '1' << endl;   
             ^
0_0_19881295_13285.cpp:13:28: error: 'endl' was not declared in this scope
             cout << '1' << endl;   
                            ^
0_0_19881295_13285.cpp:15:13: error: 'cout' was not declared in this scope
             cout << '0' << endl;
             ^
0_0_19881295_13285.cpp:15:28: error: 'endl' was not declared in this scope
             cout << '0' << endl;
                            ^