View Compilation Error

0_0_38741036_15904.cpp: In function 'int main()':
0_0_38741036_15904.cpp:39:17: error: 'll' was not declared in this scope
   39 |                 ll ans=0;
      |                 ^~
0_0_38741036_15904.cpp:42:33: error: 'ans' was not declared in this scope; did you mean 'abs'?
   42 |                                 ans=max(ans,f[n][ID(a,b)]);
      |                                 ^~~
      |                                 abs
0_0_38741036_15904.cpp:43:31: error: 'ans' was not declared in this scope; did you mean 'abs'?
   43 |                 printf("%d\n",ans);
      |                               ^~~
      |                               abs