Inserarea inainte de fiecare element par

#include <iostream>
using namespace std;
int main()
{
 int n,i,j;
 cin>>n;
 int v[2*n+1];
 for(i=1;i<=n;++i)
  cin>>v[i];
 for(i=1;i<=n;++i)
  if(v[i]%2==0)
  {
    for(j=n;j>=i;–-j)
     v[j+1]=v[j];
    v[i]=3;
    i++;
    n++;
  }
 for(i=1;i<=n;i++)
  cout<<v[i]<<" ";
 return 0;
}
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