View Compilation Error

0_0_19272679_9971.cpp:1:1: error: 'include' does not name a type
 include <cstdio>
 ^
0_0_19272679_9971.cpp: In function 'int main()':
0_0_19272679_9971.cpp:8:25: error: 'scanf' was not declared in this scope
   while(scanf("%d", &num) != EOF) {
                         ^
0_0_19272679_9971.cpp:8:30: error: 'EOF' was not declared in this scope
   while(scanf("%d", &num) != EOF) {
                              ^
0_0_19272679_9971.cpp:19:25: error: 'printf' was not declared in this scope
     printf("%d\n", count);
                         ^