View Compilation Error

0_0_22518385_10598.cpp:1:1: error: 'include' does not name a type
 include<bits/stdc++.h>
 ^
0_0_22518385_10598.cpp: In function 'int main()':
0_0_22518385_10598.cpp:8:2: error: 'cin' was not declared in this scope
  cin>>x;
  ^
0_0_22518385_10598.cpp:11:22: error: 'memset' was not declared in this scope
   memset(b,0,sizeof b);
                      ^
0_0_22518385_10598.cpp:12:19: error: 'strlen' was not declared in this scope
   int len=strlen(a);
                   ^
0_0_22518385_10598.cpp:30:3: error: 'cout' was not declared in this scope
   cout<<ans<<endl;
   ^
0_0_22518385_10598.cpp:30:14: error: 'endl' was not declared in this scope
   cout<<ans<<endl;
              ^