Inserarea unui element x pe pozitia k

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