#!/bin/python3

import sys

def calculateFunc(l,r, xVal):
    sumVal=0
    for i in range(r-l+1):
        sumVal+=c[l+i]*(xVal**i)
    return sumVal
    
#get initial four values n a b q
n,a,b,q = input().strip().split(' ')
n,a,b,q = [int(n),int(a),int(b),int(q)]

value= -b/a


#get the list of initial sequence c
c = list(map(int, input().strip().split(' ')))

#get the remaining queries
for a0 in range(q):
    queryType,first,second = input().strip().split(' ')
    queryType,first,second = [int(queryType),int(first),int(second)]
    # switching i with x 
    if queryType==1:
        c[first]=second
    else:
        check=calculateFunc(first, second, value)
        #print(str(check))
        if check % (10**9 +7) ==0:
            print("Yes")
        else:
            print("No")