When I viewed some submissions of the latest div.4 and hacked some of them, I recieved this message:
Recently, your account was used to crawl. Please change your password to prevent your account from being used for unauthorized activities.
And then I'm frequently forced logged out. After I changed my password, I still cannot visit the submissions. It says:
Page is temporarily blocked by administrator
Contest: Educational Codeforces Round 181 (Rated for Div. 2)
It had a button "Change to unrated". Did it mean that I'm currently registered as rated? But my rating is bigger than 2099.
Some of the problem's difficulty seems strange. Like 1909I - Short Permutation Problem, it's obvious not only 1900. Also, 1919H - Tree Diameter is wrong too (I remember it's 3500 before). Why?
| # | User | Rating |
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| 1 | Benq | 3792 |
| 2 | VivaciousAubergine | 3647 |
| 3 | Kevin114514 | 3603 |
| 4 | jiangly | 3583 |
| 5 | strapple | 3515 |
| 6 | tourist | 3470 |
| 7 | dXqwq | 3436 |
| 8 | Radewoosh | 3415 |
| 9 | Otomachi_Una | 3413 |
| 10 | Um_nik | 3376 |
| # | User | Contrib. |
|---|---|---|
| 1 | Qingyu | 158 |
| 2 | adamant | 152 |
| 3 | Proof_by_QED | 146 |
| 3 | Um_nik | 146 |
| 5 | Dominater069 | 144 |
| 6 | errorgorn | 141 |
| 7 | cry | 139 |
| 8 | YuukiS | 135 |
| 9 | chromate00 | 134 |
| 9 | TheScrasse | 134 |
