View Compilation Error

0_0_31306602_29373.cpp:1:1: error: 'include' does not name a type
 include <stdio.h>
 ^
0_0_31306602_29373.cpp: In function 'int main()':
0_0_31306602_29373.cpp:7:31: error: 'scanf_s' was not declared in this scope
  while (scanf_s("%d%d", &x, &y) != EOF)
                               ^
0_0_31306602_29373.cpp:7:36: error: 'EOF' was not declared in this scope
  while (scanf_s("%d%d", &x, &y) != EOF)
                                    ^
0_0_31306602_29373.cpp:35:17: error: 'printf' was not declared in this scope
    printf("OK\n");
                 ^
0_0_31306602_29373.cpp:39:20: error: 'printf' was not declared in this scope
    printf("Sorry\n");
                    ^