View Compilation Error

0_0_36296147_16360.cpp:1:1: error: 'include' does not name a type
 include<bits/stdc++.h>
 ^
0_0_36296147_16360.cpp: In function 'int main()':
0_0_36296147_16360.cpp:16:2: error: 'ios' has not been declared
  ios::sync_with_stdio(false);
  ^
0_0_36296147_16360.cpp:17:2: error: 'cin' was not declared in this scope
  cin.tie(0),cout.tie(0);
  ^
0_0_36296147_16360.cpp:17:13: error: 'cout' was not declared in this scope
  cin.tie(0),cout.tie(0);
             ^
0_0_36296147_16360.cpp:23:15: error: 'endl' was not declared in this scope
   cout<<f(n)<<endl;
               ^