View Compilation Error

0_0_30231070_3285.cpp: In function 'int main()':
0_0_30231070_3285.cpp:9:4: error: 'cin' was not declared in this scope
    cin>>t;
    ^
0_0_30231070_3285.cpp:35:2: error: 'cout' was not declared in this scope
  cout<<count<<endl;
  ^
0_0_30231070_3285.cpp:35:15: error: 'endl' was not declared in this scope
  cout<<count<<endl;
               ^