View Compilation Error

0_0_30271640_13056.cpp:3:1: error: 'll' does not name a type
 ll dp[20][20][2000];
 ^
0_0_30271640_13056.cpp: In function 'long long int dfs(int, int, int, bool)':
0_0_30271640_13056.cpp:10:13: error: 'dp' was not declared in this scope
  if(!limit&&dp[len][pos][sum]!=-1)return dp[len][pos][sum];
             ^
0_0_30271640_13056.cpp:17:20: error: 'dp' was not declared in this scope
  return limit?temp:dp[len][pos][sum]=temp;
                    ^
0_0_30271640_13056.cpp: In function 'int main()':
0_0_30271640_13056.cpp:34:9: error: 'dp' was not declared in this scope
  memset(dp,-1,sizeof(dp));
         ^