View Compilation Error

0_0_33465536_31192.cpp: In function 'int main()':
0_0_33465536_31192.cpp:26:2: error: 'ios' has not been declared
  ios::sync_with_stdio(false); 
  ^
0_0_33465536_31192.cpp:27:2: error: 'cin' is not a member of 'std'
  std::cin.tie(0);
  ^
0_0_33465536_31192.cpp:28:2: error: 'cout' is not a member of 'std'
  std::cout.tie(0); 
  ^