Language: C++

#include <bits/stdc++.h>
uisng namespace std;
int main (){
  int x,n,a;
  cin>>x>>n;
  vector<int>vec(n);
vector<int>data(n);
  for(int i=0;i<n;i++){
    cin>>vec.at(i);}
for (int i=0;i<n;i++){
  if(x>vec.at(i)){
  data.at(i)=x-vec.at(i)}
  else{
    data.at(i)=vec.at(i)-x;
  }}
  sort(data.begin(),data.end());
  for(int i=0;i<n;i++){
    if(i!=data.at(i)){
      cout<<i+x<<endl;}
  }
      

Compiler output:
a.cc:2:1: error: 'uisng' does not name a type
    2 | uisng namespace std;
      | ^~~~~
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>x>>n;
      |   ^~~
      |   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:6:3: error: 'vector' was not declared in this scope
    6 |   vector<int>vec(n);
      |   ^~~~~~
a.cc:6:3: 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:6:10: error: expected primary-expression before 'int'
    6 |   vector<int>vec(n);
      |          ^~~
a.cc:7:8: error: expected primary-expression before 'int'
    7 | vector<int>data(n);
      |        ^~~
a.cc:9:10: error: 'vec' was not declared in this scope
    9 |     cin>>vec.at(i);}
      |          ^~~
a.cc:11:8: error: 'vec' was not declared in this scope
   11 |   if(x>vec.at(i)){
      |        ^~~
a.cc:12:3: error: 'data' was not declared in this scope; did you mean 'std::data'?
   12 |   data.at(i)=x-vec.at(i)}
      |   ^~~~
      |   std::data
In file included from /usr/include/c++/14/string:53,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/range_access.h:344:5: note: 'std::data' declared here
  344 |     data(initializer_list<_Tp> __il) noexcept
      |     ^~~~
a.cc:14:5: error: 'data' was not declared in this scope; did you mean 'std::data'?
   14 |     data.at(i)=vec.at(i)-x;
      |     ^~~~
      |     std::data
/usr/include/c++/14/bits/range_access.h:344:5: note: 'std::data' declared here
  344 |     data(initializer_list<_Tp> __il) noexcept
      |     ^~~~
a.cc:16:8: error: 'data' was not declared in this scope; did you mean 'std::data'?
   16 |   sort(data.begin(),data.end());
      |        ^~~~
      |        std::data
/usr/include/c++/14/bits/range_access.h:344:5: note: 'std::data' declared here
  344 |     data(initializer_list<_Tp> __il) noexcept
      |     ^~~~
a.cc:16:3: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
   16 |   sort(data.begin(),data.end());
      |   ^~~~
      |   std::sort
In file included from /usr/include/c++/14/algorithm:86,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: 'std::sort' declared here
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
a.cc:19:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   19 |       cout<<i+x<<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:19:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   19 |       cout<<i+x<<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:20:4: error: expected '}' at end of input
   20 |   }
      |    ^
a.cc:3:12: note: to match this '{'
    3 | int main (){
      |            ^