View Compilation Error

0_0_36081361_11709.cpp:1:1: error: 'include' does not name a type
 include <bits/stdc++.h>
 ^
0_0_36081361_11709.cpp: In function 'int main()':
0_0_36081361_11709.cpp:9:26: error: 'scanf' was not declared in this scope
     while(~scanf("%d", &n))
                          ^
0_0_36081361_11709.cpp:18:27: error: 'printf' was not declared in this scope
         printf("%d\n", sum);
                           ^