import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int a = in.nextInt();
        int b = in.nextInt();
        int q = in.nextInt();
        int[] c = new int[n];
        for(int c_i=0; c_i < n; c_i++){
            c[c_i] = in.nextInt();
        }
        for(int a0 = 0; a0 < q; a0++){
            int queryType = in.nextInt();
            int first = in.nextInt();
            int second = in.nextInt();
            // your code goes here
            if(queryType==1){c[first]=second;}
            else{
                double total=0.0;
                double h=1.0;
                for(int i=first;i<=second;++i){
                    total +=c[i]*h;
                    h*=(-b/a);  
                }
                if(total==0.0){
                    System.out.println("Yes");
                }
                else
                    System.out.println("No");
            }
        }
    }
}