View Compilation Error

0_0_20556199_24188.cpp:13:1: error: expected unqualified-id before 'long'
 long long f[1005][2005][2],ans;
 ^
0_0_20556199_24188.cpp: In function 'int main()':
0_0_20556199_24188.cpp:21:3: error: 'ans' was not declared in this scope
   ans=0;
   ^
0_0_20556199_24188.cpp:22:10: error: 'f' was not declared in this scope
   memset(f,0,sizeof(f));
          ^