#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <memory.h>
#include <cassert>

using namespace std;

typedef long long ll;

int main() 
{
    ll n,a,b,q;
    cin>>n>>a>>b>>q;
    
    ll arr[n];
    
    for (ll i=0;i<n;i++)    cin>>arr[i];
    
    while (q--)
    {
        ll choice;
        cin>>choice;
        ll f,s;
        cin>>f>>s;
        
        if (choice==1)  arr[f]=s;
        
        else    
        {
            ll temp=arr[f];
            
            for (ll i=f+1;i<=s;i++) temp+=(arr[i]*pow((-1.0*b)/a,i-f));
            
            if (temp==0)    cout<<"Yes"<<endl;
            else    cout<<"No"<<endl;
            //cout<<temp<<endl;
        }
    }
}