View Compilation Error

0_0_36670726_592.cpp: In function 'node dfs(int, int, int, int)':
0_0_36670726_592.cpp:25:15: error: 'dit' was not declared in this scope
  int up=limit?dit[pos]:9;
               ^
0_0_36670726_592.cpp:32:13: error: 'pp' was not declared in this scope
   ll res=(i*pp[pos])%mod;
             ^
0_0_36670726_592.cpp: In function 'long long int solve(long long int)':
0_0_36670726_592.cpp:46:3: error: 'dit' was not declared in this scope
   dit[len++]=x%10;
   ^