answer.code:2:7: error: expected nested-name-specifier before ‘ll’
    2 | using ll = unsigned long long ;
      |       ^~
answer.code:9:7: error: ‘ll’ does not name a type; did you mean ‘all’?
    9 | const ll x=1005,m=1e9+7;
      |       ^~
      |       all
answer.code:10:8: error: ‘ll’ was not declared in this scope; did you mean ‘all’?
   10 | vector<ll>fibo(x,1),f(x,1);
      |        ^~
      |        all
answer.code:10:10: error: template argument 1 is invalid
   10 | vector<ll>fibo(x,1),f(x,1);
      |          ^
answer.code:10:10: error: template argument 2 is invalid
answer.code:10:16: error: ‘x’ was not declared in this scope
   10 | vector<ll>fibo(x,1),f(x,1);
      |                ^
answer.code:10:19: error: expression list treated as compound expression in initializer [-fpermissive]
   10 | vector<ll>fibo(x,1),f(x,1);
      |                   ^
answer.code:10:23: error: ‘x’ was not declared in this scope
   10 | vector<ll>fibo(x,1),f(x,1);
      |                       ^
answer.code:10:26: error: expression list treated as compound expression in initializer [-fpermissive]
   10 | vector<ll>fibo(x,1),f(x,1);
      |                          ^
answer.code: In function ‘int main()’:
answer.code:14:9: error: ‘ll’ was not declared in this scope; did you mean ‘all’?
   14 |         ll t,n;
      |         ^~
      |         all
answer.code:15:13: error: invalid types ‘int[int]’ for array subscript
   15 |         fibo[1]=0; f[1]=1;
      |             ^
answer.code:15:21: error: invalid types ‘int[int]’ for array subscript
   15 |         fibo[1]=0; f[1]=1;
      |                     ^
answer.code:16:13: error: invalid types ‘int[int]’ for array subscript
   16 |         fibo[2]=3; f[2]=0;
      |             ^
answer.code:16:21: error: invalid types ‘int[int]’ for array subscript
   16 |         fibo[2]=3; f[2]=0;
      |                     ^
answer.code:17:15: error: expected ‘;’ before ‘i’
   17 |         for(ll i=3; i<x; i++) {
      |               ^~
      |               ;
answer.code:17:21: error: ‘i’ was not declared in this scope
   17 |         for(ll i=3; i<x; i++) {
      |                     ^
answer.code:17:23: error: ‘x’ was not declared in this scope
   17 |         for(ll i=3; i<x; i++) {
      |                       ^
answer.code:18:46: error: ‘m’ was not declared in this scope; did you mean ‘tm’?
   18 |                 fibo[i]=(2*f[i-1]+fibo[i-2])%m;
      |                                              ^
      |                                              tm
answer.code:21:14: error: ‘n’ was not declared in this scope; did you mean ‘yn’?
   21 |         cin>>n;
      |              ^
      |              yn