#!/bin/python3

import sys


n,a,b,q = input().strip().split(' ')
n,a,b,q = [int(n),int(a),int(b),int(q)]
c = list(map(int, input().strip().split(' ')))
#print(c)
for a0 in range(q):
    queryType,first,second = input().strip().split(' ')
    queryType,first,second = [int(queryType),int(first),int(second)]
    # coeff lists
    P=[]
    #E=[]
    Q=[a,b]
    # your code goes here
    if queryType == 1:
        c[first] = second
        #print("type 1")
    else:
        #print("type 2")
        # make a list of the coeff of P
        #counter = 0
        x = -b/a
        ans = 0
        for i in range(first, second+1):
            P.insert(0,c[i])
            #E.insert(0,counter)
            #counter +=1
        for i in range(len(P)):
            ans += P[i]*(x**i)
        if ans == 0:
            print("Yes")
        else:
            print("No")
    #print(P)
    #print(E)