View Compilation Error

0_0_29283775_28367.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_29283775_28367.cpp: In function 'int main()':
0_0_29283775_28367.cpp:5:7: error: 'gets' was not declared in this scope
 gets(s);
       ^
0_0_29283775_28367.cpp:7:12: error: 'strlen' was not declared in this scope
 if(strlen(s)%2!=0)
            ^
0_0_29283775_28367.cpp:13:11: error: 'printf' was not declared in this scope
 printf("*");
           ^
0_0_29283775_28367.cpp:15:14: error: 'printf' was not declared in this scope
 printf("%d",y);//输出y 一直为0
              ^
0_0_29283775_28367.cpp:19:11: error: 'printf' was not declared in this scope
 printf("N");
           ^