Language: C++

#include <bits/stdc++.h>
using namespace std;

#define PI 3.14159265359
#define MODULO 1000000007

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
//large array has to be declared outside main, allocated statically
// if stored inside main, this variable lives in stack, caused overflow

int cnt[1000001];
int divi[1000001];
 
int main()
{
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n; cin>>n;
  int a[n];
  for(int i=0;i<n;i++)
  {
    cin>>a[i];
    cnt[a[i]]++;
  }

  // find the divisor of each number by
  // number smaller or equal to itself
  // or  in this case find multiples of i
  // if i exists in input, count of multiples increase
  for(int i=1;i<=#include <bits/stdc++.h>
using namespace std;

#define PI 3.14159265359
#define MODULO 1000000007

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
//large array has to be declared outside main, allocated statically
// if stored inside main, this variable lives in stack, caused overflow

int cnt[1000001];
int divi[222222];
 
int main()
{
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n; cin>>n;
  int a[n];
  for(int i=0;i<n;i++)
  {
    cin>>a[i];
    cnt[a[i]]++;
  }

  // find the divisor of each number by
  // number smaller or equal to itself
  // or  in this case find multiples of i
  // if i exists in input, count of multiples increase
  for(int i=1;i<=1000000;i++)

  {
    for(int j=i;j<=#include <bits/stdc++.h>
using namespace std;

#define PI 3.14159265359
#define MODULO 1000000007

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
//large array has to be declared outside main, allocated statically
// if stored inside main, this variable lives in stack, caused overflow

int cnt[1000001];
int divi[222222];
 
int main()
{
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n; cin>>n;
  int a[n];
  for(int i=0;i<n;i++)
  {
    cin>>a[i];
    cnt[a[i]]++;
  }

  // find the divisor of each number by
  // number smaller or equal to itself
  // or  in this case find multiples of i
  // if i exists in input, count of multiples increase
  for(int i=1;i<=1000000;i++)

  {
    for(int j=i;j<=1000000;j+=i)
    {
      divi[j]+=cnt[i];
    }
  }
  int ans=0;
  for(int i=0;i<n;i++)
  {
    if(divi[a[i]]==1) ans++;
  }
  cout<<ans<<'\n';

}
// Method from editorial;j+=i)
    {
      divi[j]+=cnt[i];
    }
  }
  int ans=0;
  for(int i=0;i<n;i++)
  {
    if(divi[a[i]]==1) ans++;
  }
  cout<<ans<<'\n';

}
// Method from editorial;i++)

  {
    for(int j=i;j<=100;j+=i)
    {
      divi[j]+=cnt[i];
    }
  }
  int ans=0;
  for(int i=0;i<n;i++)
  {
    if(divi[a[i]]==1) ans++;
  }
  cout<<ans<<'\n';

}
// Method from editorial

Compiler output:
a.cc:31:18: error: stray '#' in program
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |                  ^
a.cc:64:20: error: stray '#' in program
   64 |     for(int j=i;j<=#include <bits/stdc++.h>
      |                    ^
a.cc: In function 'int main()':
a.cc:31:19: error: 'include' was not declared in this scope
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |                   ^~~~~~~
a.cc:31:28: error: 'bits' was not declared in this scope
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |                            ^~~~
a.cc:31:33: error: 'stdc' was not declared in this scope; did you mean 'std'?
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |                                 ^~~~
      |                                 std
a.cc:32:1: error: expected primary-expression before 'using'
   32 | using namespace std;
      | ^~~~~
a.cc:31:42: error: expected ';' before 'using'
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |                                          ^
      |                                          ;
   32 | using namespace std;
      | ~~~~~                                     
a.cc:32:1: error: expected primary-expression before 'using'
   32 | using namespace std;
      | ^~~~~
a.cc:31:42: error: expected ')' before 'using'
   31 |   for(int i=1;i<=#include <bits/stdc++.h>
      |      ~                                   ^
      |                                          )
   32 | using namespace std;
      | ~~~~~                                     
a.cc:46:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   46 | int main()
      |         ^~
a.cc:46:9: note: remove parentheses to default-initialize a variable
   46 | int main()
      |         ^~
      |         --
a.cc:46:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:47:1: error: a function-definition is not allowed here before '{' token
   47 | {
      | ^
a.cc:126:15: error: 'i' was not declared in this scope
  126 |     for(int j=i;j<=100;j+=i)
      |               ^