You can use several words in query to find by all of them at the same time. In addition, if you are lucky search understands word forms and some synonyms. It supports search by title and author. Examples:

  • 305 — search for 305, most probably it will find blogs about the Round 305
  • andrew stankevich contests — search for words "andrew", "stankevich" and "contests" at the same time
  • user:mikemirzayanov title:testlib — search containing "testlib" in title by MikeMirzayanov
  • "vk cup" — use quotes to find phrase as is
  • title:educational — search in title

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1.
By hogloid, 7 years ago, In English
Codeforces Round #263 Hello everyone! [user:snuke,2014-08-23], [user:wolf_sothe,2014-08-23] and me would like to invite you to Codeforces Round #263 for both divisions. It will be held on [Tuesday, August 26th at 18:00 MSK](http://www.timeanddate.com/worldclock/fixedtime.html?msg=Codeforces+Round+%23263&iso=20140826T18&p1=166&ah=2). Note that this round starts on different time from normal rounds. Great thanks to [user:Gerald,2014-08-23] for helping us prepare the round, [user:MikeMirzayanov,2014-08-23] for creating a fine platform, and [user:Delinur,2014-08-23] for translating the statements. You'll help men named Appleman and Toastman in this round. Good luck and have fun! ![ ](http://snuke.main.jp/imgs/cf/appleman.png) **UPD.** In Div.1 and Div.2, scores will be standard, that is , 500-1000-1500-2000-2500 for each problem. Now the contest is over! Thank you for participating! Here are the winners: Div1. 1. [user:WJMZBMR,2014-08-26] 2. [user:sankear,2014-08-26] 3. [u...
Codeforces Round #263, ![ ](http://snuke.main.jp/imgs/cf/appleman.png)

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2.
By kostka, 7 years ago, In English
Hack me! (CF Round #263, Div. 2) Welcome again! I decided to split statistics for both division. Post for first division <strike>will be added later</strike> is <a href="http://codeforces.com/blog/entry/13572">here</a>. So, let's look at hacks in [contest:462]. <small><strike>Some statistics are missing &mdash; I have some problems with downloading all data (Codeforces seems little crowded today). They will be also added later.</strike></small> **Update**: Europe went asleep, so I added missing stats. [cut] <h3>Stats</h3> Problem | Successful hacks | Unsuccessful hacks | Other | Sum | :---:|:---:|:---:|:---:|:---:| [problem:462A] | 5 (17%) | 25 (83%) | 0 (0%) | 30 | [problem:462B] | 1193 (71%) | 188 (11%) | 306 (18%) | 1687 | [problem:462C] | 0 (0%) | 55 (36%) | 98 (64%) | 153 | ### Fastest hackers Problem | Time | Hacker | Defender | Hack :---:|:---:|:---:|:---:|:---:| [problem:462A] | 00:50:08 | [user:ak.bewildered,2014-08-26] | [user:abdohammam95,2014-08-26] | <a href="http://codefo...
Hack me! (CF Round #263, Div. 2)

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3.
By kostka, 7 years ago, In English
Hack me! (CF Round #263, Div. 1) Stats about hacks in [contest:461] (quite late). [cut] <h3>Stats</h3> Problem | Successful hacks | Unsuccessful hacks | Other | Sum | :---:|:---:|:---:|:---:|:---:| [problem:461A] | 6 (8%) | 23 (32%) | 43 (60%) | 72 | [problem:461B] | 0 (0%) | 2 (33%) | 4 (67%) | 6 | [problem:461C] | 1 (100%) | 0 (0%) | 0 (0%) | 1 | ### Fastest hackers Problem | Time | Hacker | Defender | Hack :---:|:---:|:---:|:---:|:---:| [problem:461A] | 00:18:40 | [user:IWillBeRed,2014-08-26] | [user:thermal,2014-08-26] | <a href="http://codeforces.com/contest/461/hacks/110022/">110022</a> | [problem:461C] | 01:56:17 | [user:FatalEagle,2014-08-26] | [user:mareksom,2014-08-26] | <a href="http://codeforces.com/contest/461/hacks/111898/">111898</a> | Congratulations for [user:FatalEagle,2014-08-26] for one and only hack for problem <a href="http://codeforces.com/contest/461/problem/C">C</a>! It was really fatal hack for [user:mareksom,2014-08-26] (in last 5 minutes). ### Remarks #### [pr...
Hack me! (CF Round #263, Div. 1)

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4.
By adrien1018, history, 3 years ago, In English
Some Statistics About CF Rating Changes (2018/07 update) #### Overview There are 1409603 rating changes in 792 rated contests (by 2018/07/14, including those mentioned in the "Something Weird" section). There are 142117 users with at least one rating change. The overall average of deltas is -6.671139. #### Rating Changes Distribution <img src="https://image.ibb.co/gZjnpJ/hist.png" width="90%"/> <img src="https://image.ibb.co/jejnpJ/hist2.png" width="90%"/> (Well, it looks like a boa constrictor eating an elephant...) #### Top 20 Events: Positive Rating Change <table> <tr> <th>#</th> <th>Who</th> <th>Δ</th> <th>Rating</th> <th style="width: 25em;">Contest</th> </tr> <tr> <td>1</td> <td>[user:Mhammad1,2018-07-16]</td> <td><span style="color:green;font-weight:bold;">+803</span></td> <td><span style="font-weight:bold;" class="user-gray">-22</span> → <span style="font-weight:bold;" class="user-gray">781</span></td> <td>[contest:814]</td> </tr> <tr> <td>2</td> <td>[user:white_1,2018-07-16]</td> <td><span style=...
Some Statistics About CF Rating Changes (2018/07 update), > [user:yosupo,2018-07-16] -263, >[user:yosupo,2018-07-16] -263

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5.
By gabrielwu, 14 months ago, In English
Register for the Montgomery Blair Informatics Tournament 2020 Online Round! If you are interested in participating in the Montgomery Blair Informatics Tournament, which will be held **online** from [1:00-4:00 PM EDT](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Montgomery+Blair+Informatics+Tournament+2020+Online+Round&iso=20200607T13&p1=263&ah=3) on **Sunday (6/7/20)**, please register at https://mbit.mbhs.edu/. Teams of up to 4 are allowed! Anyone can compete, but only teams of US high school (or middle school) students can win Amazon gift cards for prizes: - $50 per person for 1st place in Advanced Division - $25 per person for 1st place in Standard Division, 2nd place in Advanced Division, and 3rd place in Advanced Division If you want to get a sense of what mBIT problems are like, take a look at the problems from our contest last November: - [Rookie (Standard) problems](https://mbit.mbhs.edu/archive/2019/rookie.pdf) | [Rookie solutions](https://mbit.mbhs.edu/archive/2019/rookie_editorial.pdf) | [Test Rookie solutions here](https...
=Montgomery+Blair+Informatics+Tournament+2020+Online+Round&iso=20200607T13&p1= 263&ah=3) on **Sunday

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6.
By galen_colin, 13 months ago, In English
Community-prepared testing rounds Since the two failures of the contests last weekend, a lot of people have expressed that they want to help Codeforces in some way, but there isn't much many of us can actually do about the system. At the same time, there have also been a lot of (reasonable) requests for a testing round before round 656. So let's put those two together. Why don't we set some potential testing rounds? Maybe they should be rated, maybe they shouldn't, but in any case, they should be interesting enough to draw in participants like normal rounds do. It's probably not a good idea to "sacrifice" rounds not rated for Div. 1, as some have suggested, because that still wastes the efforts of the setters. So what I'm suggesting is that we prepare rounds with the specific intent of them being testing rounds. Some advantages of this system: - If these rounds are unrated, there's much less pressure for original/novel problems (and probably fewer problems will be rejected), so more of these rounds will be able t...
, then they might pollute CF! But there's a simple solution to this: if this becomes an issue, just

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Announcement of Testing Round #XVII
 
 
 
 
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7.
By fractal, history, 3 months ago, In Russian
Республиканская олимпиада 2021 года. Казахcтан. Результаты. 2021 : https://codeforces.com/blog/entry/90111 2020 : https://codeforces.com/blog/entry/80808 2019 : https://respa.daryn.kz/ 2018 : https://codeforces.com/blog/entry/58432 2017: https://codeforces.com/blog/entry/51416 ####9 Класс <html> <body> <style type="text/css"> .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} </style> <table class="tg" style="undefined;table-layout: fixed; width: 579px"> <colgroup> <col style="width: 50px"> <col style="width: 160px"> <col style="width: 170px"> <col style="width: 97px"> <col style="width: 102px"> </colgroup...
class="tg-0pky">CF handle Балл Медаль, class="tg-0pky">Место ФИО CF handle

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