View Compilation Error

0_0_23729888_20855.cpp: In function 'long long int dfs(int, int, int, int)':
0_0_23729888_20855.cpp:17:23: error: invalid types 'long long int[int]' for array subscript
  if(dp[pos][flag][b][c]!=-1)return dp[pos][flag][b][c];
                       ^
0_0_23729888_20855.cpp:17:54: error: invalid types 'long long int[int]' for array subscript
  if(dp[pos][flag][b][c]!=-1)return dp[pos][flag][b][c];
                                                      ^
0_0_23729888_20855.cpp:49:27: error: invalid types 'long long int[int]' for array subscript
  return dp[pos][flag][b][c]=res%m;
                           ^