View Compilation Error

0_0_35010670_25999.cpp: In function 'int dfs(int, int, int, bool)':
0_0_35010670_25999.cpp:9:16: error: 'dp' was not declared in this scope
  if (!limit && dp[pos][sta]!=-1) return f[pos][sta];
                ^
0_0_35010670_25999.cpp: In function 'int main()':
0_0_35010670_25999.cpp:33:25: error: ISO C++ forbids applying 'sizeof' to an expression of function type [-fpermissive]
   memset(dp, -1, sizeof dp);
                         ^
0_0_35010670_25999.cpp:33:27: error: invalid conversion from 'int (*)(int)' to 'void*' [-fpermissive]
   memset(dp, -1, sizeof dp);
                           ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cstring:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:48,
                 from 0_0_35010670_25999.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/string.h:43:18: note: initializing argument 1 of 'void* memset(void*, int, size_t)'
   void * __cdecl memset(void *_Dst,int _Val,size_t _Size);
                  ^