View Compilation Error

0_0_27488784_5117.cpp: In function 'int main()':
0_0_27488784_5117.cpp:9:3: error: 'cin' was not declared in this scope
   cin >> n;
   ^
0_0_27488784_5117.cpp:41:3: error: 'cout' was not declared in this scope
   cout << times[b] << endl;
   ^
0_0_27488784_5117.cpp:41:23: error: 'endl' was not declared in this scope
   cout << times[b] << endl;
                       ^
0_0_27488784_5117.cpp:43:4: error: 'cout' was not declared in this scope
    cout << "-1" << endl;
    ^
0_0_27488784_5117.cpp:43:20: error: 'endl' was not declared in this scope
    cout << "-1" << endl;
                    ^