#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>
long long int check(long long int *c ,long long int first,long long int second ,float d)
    {
    float sum = 0;
    for(long long int cc = first;cc<=second;++cc)
        {
        sum += (float)(c[cc]*pow(d,cc-first));
    }
    if(sum < 0.00001)
        return 1;
    return 0;
}
int main(){
    long long int n; 
    long long int a; 
    long long int b; 
    long long int q; 
    scanf("%lld %lld %lld %lld",&n,&a,&b,&q);
    float ccc = (float)(-1*b/a);
    long long int *c = malloc(sizeof(long long int) * n);
    for(long long int c_i = 0; c_i < n; c_i++){
       scanf("%lld",&c[c_i]);
    }
    for(long long int a0 = 0; a0 < q; a0++){
        long long int queryType; 
        long long int first; 
        long long int second; 
        scanf("%lld %lld %lld",&queryType,&first,&second);
        if(queryType == 1)
            {
            c[first] = second;
            continue;
        }
        else {
             if(check(c,first,second,ccc) == 1)
                 {
                 printf("Yes\n");
                 continue;
             }
            printf("No\n");
        }   
    }
    return 0;
}