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


int main() {
    int n,a,b,q;
    cin>>n>>a>>b>>q;
    int i;
    int  ar[100001];
    for(i=0;i<n;i++)
        {
        cin>>ar[i];
        
    }
    
    
    int j;
    for(j=0;j<q;j++)
        {
        int x,y,z;
    cin>>x>>y>>z;
    if(x==1)
        {
        ar[y]=z;
    }
    else
        {
        int X=-b/a;
        int sum=0;
        for(i=0;i<n;i++)
            {
            sum+=ar[i]*pow(X,i);
        }
        if(sum==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    }
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    return 0;
}