Language: C++

#include<cstdio>
#include<string>
#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
int main(){
  int n;
  scanf("%d",&n);
  vector<int> vc(n);
  for(int i = 0 ; i < n ; i++ ) scanf("%d",&vc[i]);
  int ans = 0,q,a;
  scanf("%d",&q);
  sort(vc.begin(),vc.end());
  while(q--){
    cin >> a;
    if(binary_search(vc.begin(),vc.end(),a)) ans++;
  }
  printf("%d\n",ans);
}


Compiler output:
a.cc:8:1: error: extended character   is not valid in an identifier
    8 |   int n;
      | ^
a.cc:8:1: error: extended character   is not valid in an identifier
a.cc:9:1: error: extended character   is not valid in an identifier
    9 |   scanf("%d",&n);
      | ^
a.cc:9:1: error: extended character   is not valid in an identifier
a.cc:10:1: error: extended character   is not valid in an identifier
   10 |   vector<int> vc(n);
      | ^
a.cc:10:1: error: extended character   is not valid in an identifier
a.cc:11:1: error: extended character   is not valid in an identifier
   11 |   for(int i = 0 ; i < n ; i++ ) scanf("%d",&vc[i]);
      | ^
a.cc:11:1: error: extended character   is not valid in an identifier
a.cc:12:1: error: extended character   is not valid in an identifier
   12 |   int ans = 0,q,a;
      | ^
a.cc:12:1: error: extended character   is not valid in an identifier
a.cc:13:1: error: extended character   is not valid in an identifier
   13 |   scanf("%d",&q);
      | ^
a.cc:13:1: error: extended character   is not valid in an identifier
a.cc:14:1: error: extended character   is not valid in an identifier
   14 |   sort(vc.begin(),vc.end());
      | ^
a.cc:14:1: error: extended character   is not valid in an identifier
a.cc:15:1: error: extended character   is not valid in an identifier
   15 |   while(q--){
      | ^
a.cc:15:1: error: extended character   is not valid in an identifier
a.cc:16:1: error: extended character   is not valid in an identifier
   16 |     cin >> a;
      | ^
a.cc:16:1: error: extended character   is not valid in an identifier
a.cc:16:1: error: extended character   is not valid in an identifier
a.cc:16:1: error: extended character   is not valid in an identifier
a.cc:17:1: error: extended character   is not valid in an identifier
   17 |     if(binary_search(vc.begin(),vc.end(),a)) ans++;
      | ^
a.cc:17:1: error: extended character   is not valid in an identifier
a.cc:17:1: error: extended character   is not valid in an identifier
a.cc:17:1: error: extended character   is not valid in an identifier
a.cc:18:1: error: extended character   is not valid in an identifier
   18 |   }
      | ^
a.cc:18:1: error: extended character   is not valid in an identifier
a.cc:19:1: error: extended character   is not valid in an identifier
   19 |   printf("%d\n",ans);
      | ^
a.cc:19:1: error: extended character   is not valid in an identifier
a.cc: In function 'int main()':
a.cc:8:1: error: '\U000000a0\U000000a0int' was not declared in this scope
    8 |   int n;
      | ^~~~~
a.cc:9:15: error: 'n' was not declared in this scope
    9 |   scanf("%d",&n);
      |               ^
a.cc:9:1: error: '\U000000a0\U000000a0scanf' was not declared in this scope
    9 |   scanf("%d",&n);
      | ^~~~~~~
a.cc:10:1: error: '\U000000a0\U000000a0vector' was not declared in this scope
   10 |   vector<int> vc(n);
      | ^~~~~~~~
a.cc:10:10: error: expected primary-expression before 'int'
   10 |   vector<int> vc(n);
      |          ^~~
a.cc:11:7: error: expected primary-expression before 'int'
   11 |   for(int i = 0 ; i < n ; i++ ) scanf("%d",&vc[i]);
      |       ^~~
a.cc:11:19: error: 'i' was not declared in this scope
   11 |   for(int i = 0 ; i < n ; i++ ) scanf("%d",&vc[i]);
      |                   ^
a.cc:12:6: error: expected ';' before 'ans'
   12 |   int ans = 0,q,a;
      |      ^~~~
      |      ;
a.cc:13:15: error: 'q' was not declared in this scope
   13 |   scanf("%d",&q);
      |               ^
a.cc:14:8: error: 'vc' was not declared in this scope
   14 |   sort(vc.begin(),vc.end());
      |        ^~
a.cc:14:1: error: '\U000000a0\U000000a0sort' was not declared in this scope
   14 |   sort(vc.begin(),vc.end());
      | ^~~~~~
a.cc:15:1: error: '\U000000a0\U000000a0while' was not declared in this scope
   15 |   while(q--){
      | ^~~~~~~
a.cc:19:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |   printf("%d\n",ans);
      |                 ^~~
      |                 abs
a.cc:19:1: error: '\U000000a0\U000000a0printf' was not declared in this scope; did you mean 'wprintf'?
   19 |   printf("%d\n",ans);
      | ^~~~~~~~
      | wprintf