This site uses different types of cookies, including analytics and functional cookies (its own and from other sites). To change your cookie settings or find out more, click here. If you continue browsing our website, you accept these cookies.
We've recently made an accessibility improvement to the community and therefore posts without any content are no longer allowed. Please use the spoiler feature or add a short message in the message body in order to submit your weekly challenge.
borrowed another commenter's use of the unique tool to find each time the cumulative order quantity changed (even if the same order quantity was used multiple times in a row), which I would never have thought to use for this case. genius!