import java.io.*;
import java.util.*;
public class q3
{
    public static void main(String args[])throws IOException
    {
        Scanner in=new Scanner(System.in);
        int n,a,b,q;
        n=in.nextInt();
        a=in.nextInt();
        b=in.nextInt();
        q=in.nextInt();
        int arr[]=new int[n];
        int brr[]=new int[n];
        for(int i=0;i<n;i++)
        arr[i]=in.nextInt();
        brr=arr.clone();
        int queries[][]=new int[q][3];
        for(int i=0;i<q;i++)
        {
            queries[i][0]=in.nextInt();
            queries[i][1]=in.nextInt();
            queries[i][2]=in.nextInt();
        }
        double qx=(double)(-b)/a;double ans=0.0;
        int flag=0;
        for(int i=0;i<q;i++)
        {
            if(queries[i][0]==1)
            {
                arr[queries[i][1]]=queries[i][2];
                flag=1;
            }
            if(queries[i][0]==2)
            {
                    for(int f=0;f<n;f++)
                    {
                        ans=ans+arr[f]*Math.pow(qx,f);
                    }
                    if(ans==0.0)
                    System.out.println("Yes");
                    else
                    System.out.println("No");
                    if(flag==1)
                    arr=brr.clone();
                    ans=0.0;
                }
            }
     }
}