View Compilation Error

0_0_27544661_24384.cpp: In function 'int main()':
0_0_27544661_24384.cpp:6:2: error: 'cin' was not declared in this scope
  cin >> data;
  ^
0_0_27544661_24384.cpp:7:30: error: 'strlen' was not declared in this scope
  int dataLength = strlen(data);
                              ^
0_0_27544661_24384.cpp:38:3: error: 'cout' was not declared in this scope
   cout <<"tmp"<<tmp[i]<<"\n";
   ^
0_0_27544661_24384.cpp:55:3: error: 'cout' was not declared in this scope
   cout << tmp[i];
   ^