foo.cpp:1:1: error: 'include' does not name a type
 include <bits/stdc++.h> 
 ^
foo.cpp: In function 'int main()':
foo.cpp:11:1: error: 'cin' was not declared in this scope
 cin>>a;
 ^
foo.cpp:19:1: error: 'cout' was not declared in this scope
 cout<<hh;
 ^