View Compilation Error

0_0_34034734_3536.cpp: In function 'void dfs(int, int)':
0_0_34034734_3536.cpp:20:28: error: invalid types 'short int [10001][501][short int [10001]]' for array subscript
  memcpy(father[x],father[fa],sizeof(father[fa]));
                            ^
0_0_34034734_3536.cpp:20:46: error: invalid types 'short int [10001][501][short int [10001]]' for array subscript
  memcpy(father[x],father[fa],sizeof(father[fa]));
                                              ^