December 2019 edit
Hello, I'm Serols. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Search data structure—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. Serols (talk) 16:35, 15 December 2019 (UTC)
- If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.
Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to Search data structure. Your edits appear to be vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. Serols (talk) 16:37, 15 December 2019 (UTC)
February 2020 edit
Hello, I'm J. M.. I wanted to let you know that one or more external links you added to MP3 have been removed because they seemed to be inappropriate for an encyclopedia. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page, or take a look at our guidelines about links. Thank you. —J. M. (talk) 19:26, 3 February 2020 (UTC)
March 2020 edit
Hello, I'm CLCStudent. I noticed that you added or changed content in an article, Ultimate Fighting Championship, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at the tutorial on citing sources, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. CLCStudent (talk) 14:41, 14 March 2020 (UTC)
- If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.
 | This is the discussion page for an IP user, identified by the user's IP address. Many IP addresses change periodically, and are often shared by several users. If you are an IP user, you may create an account or log in to avoid future confusion with other IP users. Registering also hides your IP address. |