#!/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(' ')))
if b == 0:
    root = a
elif b % a == 0:
    root = -b // a
else:
    root = -b / a
for a0 in range(q):
    queryType,first,second = input().strip().split(' ')
    queryType,first,second = [int(queryType),int(first),int(second)]
    if queryType == 1:
        c[first] = second
    else:
        if b != 0:
            j = 0
            sum = 0
            while j <= (second - first):
                sum += (root**j) * c[first + j]
                j += 1
            if sum == 0:
                print('Yes')
            else:
                print('No')
        else:
            if c[first] == 0:
                print('Yes')
            else:
                print('No')