View Compilation Error

0_0_21214438_14006.cpp: In function 'int main(int, char**)':
0_0_21214438_14006.cpp:16:29: error: 'memset' was not declared in this scope
       memset(an,0,sizeof(an));
                             ^
0_0_21214438_14006.cpp:21:7: error: 'fatship' was not declared in this scope
       fatship zh;
       ^