Language: C++

#include<bits/stdc++.h> using namespace std;
const long long mod=1e9+7;
int main(){ int N,M;
cin>>N>>M;
vector<int>oks(N+1,true); for(int i=0;i<M;++i){
int a;cin>>a;
oks[a]=false; }
vector<long long int>dp(N+1); dp[0]=1;
for(int now=0;now<N;++now){
for(int next=now+1;next<=min(N,now+2);++next){ if(oks[next]){
} }
cout<<dp[N]<<endl;
return 0; }
dp[next]+=dp[now];
dp[next]%=mod; }

Compiler output:
a.cc:1:25: warning: extra tokens at end of #include directive
    1 | #include<bits/stdc++.h> using namespace std;
      |                         ^~~~~
a.cc: In function 'int main()':
a.cc:4:1: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 | cin>>N>>M;
      | ^~~
      | std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:5:1: error: 'vector' was not declared in this scope
    5 | vector<int>oks(N+1,true); for(int i=0;i<M;++i){
      | ^~~~~~
a.cc:5:1: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:5:8: error: expected primary-expression before 'int'
    5 | vector<int>oks(N+1,true); for(int i=0;i<M;++i){
      |        ^~~
a.cc:7:1: error: 'oks' was not declared in this scope
    7 | oks[a]=false; }
      | ^~~
a.cc:8:8: error: expected primary-expression before 'long'
    8 | vector<long long int>dp(N+1); dp[0]=1;
      |        ^~~~
a.cc:8:31: error: 'dp' was not declared in this scope; did you mean 'dup'?
    8 | vector<long long int>dp(N+1); dp[0]=1;
      |                               ^~
      |                               dup
a.cc:10:26: error: 'min' was not declared in this scope; did you mean 'std::min'?
   10 | for(int next=now+1;next<=min(N,now+2);++next){ if(oks[next]){
      |                          ^~~
      |                          std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:10:51: error: 'oks' was not declared in this scope
   10 | for(int next=now+1;next<=min(N,now+2);++next){ if(oks[next]){
      |                                                   ^~~
a.cc:12:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 | cout<<dp[N]<<endl;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:14: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 | cout<<dp[N]<<endl;
      |              ^~~~
      |              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:14:4: error: 'next' was not declared in this scope; did you mean 'std::next'?
   14 | dp[next]+=dp[now];
      |    ^~~~
      |    std::next
In file included from /usr/include/c++/14/bits/stl_algobase.h:66,
                 from /usr/include/c++/14/algorithm:60:
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: 'std::next' declared here
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:14:14: error: 'now' was not declared in this scope; did you mean 'pow'?
   14 | dp[next]+=dp[now];
      |              ^~~
      |              pow