View Compilation Error

0_0_37312854_9004.cpp:1:1: error: 'include' does not name a type
 include <stdio.h>
 ^
0_0_37312854_9004.cpp: In function 'int main()':
0_0_37312854_9004.cpp:7:26: error: 'scanf' was not declared in this scope
     while(~scanf("%d", &t))
                          ^
0_0_37312854_9004.cpp:12:27: error: 'printf' was not declared in this scope
         printf("%d\n", sum);
                           ^