View Compilation Error

0_0_23551681_14475.cpp:1:1: error: 'include' does not name a type
 include<iostream>
 ^
0_0_23551681_14475.cpp: In function 'int main()':
0_0_23551681_14475.cpp:50:3: error: 'cout' was not declared in this scope
   cout<<ans<<endl;
   ^
0_0_23551681_14475.cpp:50:14: error: 'endl' was not declared in this scope
   cout<<ans<<endl;
              ^