Hi there,

I'm trying to write a SQL query based on the following tables.

create table purch (
integer user_id, *
integer product_id, *
integer item_count,
date purch_date *
);

Thanks Tom. I'll read about those algorithms.

Tina

Yes, I agree. Your code takes more memory and runs faster. I still need to figure out if there are other options. I'll give it another try.

Thanks a lot.

Tina

Hi,

Could someone tell me if there's a better way of doing this? I was asked this question in an interview and I wrote a piece of code of O(n2).



Thanks,
Tina

Hi,

Thanks for responding!

I was thinking of doing it at the bit level using the bit operators.

Thanks again,
Tina

Hi there,

I tried binary addition. It seems to work fine. Could someone tell me if there's a better way of doin this or any bugs that could be uncovered in the code below?

I appreciate your...