I searched several blogs on this topic (both on Codeforces and Vjudge), but most of them are quite old (2 or even 9 years ago). Of course, I tried the methods they suggested, but they no longer work because the accounts they mentioned are no longer available. Some of the blogs I found: Blog #124424, Blog #52135.

So I’m writing this blog to ask whether Vjudge still crawls Gym problems. If it does, how can I make Vjudge crawl my problems immediately? I know some people may not like Vjudge because of the high number of submissions, but for my personal purposes, I really need Vjudge and want to add my own problems.

When I create this account, it didn't ask me to provide my username, maybe I use Gmail to login and it take my email address as the handle? Now, I want to change it into something else, I read some blogs that said it is impossible to change handle. However, is there any exceptions that I require to complete some complicated things? I really want to change my handle because of my personal reasons, thanks!