View Compilation Error

0_0_13801281_28587.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13801281_28587.cpp: In function 'int main()':
0_0_13801281_28587.cpp:5:26: error: 'scanf' was not declared in this scope
     while(~scanf("%lf",&n))
                          ^
0_0_13801281_28587.cpp:7:15: error: 'n18' was not declared in this scope
         while(n18)//ѭ�������۲�����ʣ������ķ�Χ����2~9֮��Ϊ���ֵı�ʤ̬��10~18Ϊ���ֵıذ�̬ 
               ^
0_0_13801281_28587.cpp:10:5: error: expected ')' before '}' token
     }
     ^