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

public class Solution {
    /*public static int getGCD(int a, int b) {
        if(a==0||b==0) return a+b;
        else getGCD(a, a%b);
    }*/

    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];
        //int gcd = getGCD(a, b);
        //a /= gcd;
        //b /= gcd;
        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 if (queryType == 2) {
                long sumOfFractions = 0;
                for(int c_i=first; c_i <= second; c_i++){
                    sumOfFractions += c[c_i] * Math.pow((double)-b/a, c_i-first);
                }
                if (sumOfFractions == 0) System.out.println("Yes");
                else System.out.println("No");
            } else {
                System.out.println("Invalid query type.");
            }
        }
    }
}