#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    int n,q;
    long long a,b;
    cin >> n >> a >> b >> q;
    long long c[n];
    for(int i = 0;i<n;i++){
        cin >> c[i];
    }
    for(int i = 0;i<q;i++){
        int d;
        long long o,p;
        cin >> d >> o >> p;
        if(d==1){
            c[o]=p;
        }else{
            double cof=(double)c[o]/b;
            for(int i = 1;i<p;i++){
                cof=c[o+i]-cof*a;
                cof/=(double)b;
            }
            if(abs(cof*a-c[p])<0.0000001){
                cout << "Yes\n";
            }else{
                cout << "No\n";
            }
        }
    }
    return 0;
}