View Compilation Error

0_0_18676478_13062.cpp:1:1: error: 'include' does not name a type
 include <stdio.h>
 ^
0_0_18676478_13062.cpp: In function 'int main()':
0_0_18676478_13062.cpp:17:28: error: 'scanf' was not declared in this scope
     while (~scanf("%d" , &n)){
                            ^
0_0_18676478_13062.cpp:18:29: error: 'printf' was not declared in this scope
         printf("%d\n" , s[n]);    
                             ^