View Compilation Error

0_0_32471724_25790.cpp:1:1: error: 'include' does not name a type
 include <stdio.h>
 ^
0_0_32471724_25790.cpp: In function 'int main()':
0_0_32471724_25790.cpp:22:24: error: 'scanf' was not declared in this scope
  while(scanf("%s%s",a,b)!=EOF)
                        ^
0_0_32471724_25790.cpp:22:27: error: 'EOF' was not declared in this scope
  while(scanf("%s%s",a,b)!=EOF)
                           ^
0_0_32471724_25790.cpp:27:18: error: 'printf' was not declared in this scope
    printf("YES\n");
                  ^
0_0_32471724_25790.cpp:29:17: error: 'printf' was not declared in this scope
    printf("NO\n");
                 ^
0_0_32471724_25790.cpp:31:10: error: expected '}' at end of input
  return 0;
          ^