CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) **Note the unusual start time of the round.** Hello, Codeforces! Now that Gaokao is over, we are very glad to invite you to participate in [contest:1842], which will start at [contest_time:1842]. You will be given **9 problems** and **3 hours** to solve them. The round will be rated for everyone. All problems are written and prepared by [user:Gary2005,2023-06-21], [user:Asuka,2023-06-21], [user:Crying,2023-06-21], [user:sjcsjcsjc,2023-06-21], [user:MonkeyKing,2023-06-21], [user:DerekFeng,2023-06-21], [user:KbltQaQ,2023-06-21], [user:ShmilyTY,2023-06-21] and me. Statements and editorials will be available in Chinese (Simplified) after the contest. We would like to give our sincere thanks to: - [user:errorgorn,2023-06-21] for his wonderful coordination! - [user:Alexdat2000,2023-06-21] for translating problem statements. - [user:gyh20,2023-06-21], [user:wangziji,2023-06-21], [user:flowerletter,2023-06-21], [user:themoon,2023-06-21], [user:qiuzx,2023-06-21], [user:Gezh...

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CodeTON Round 2 Hello, Codeforces! A wonderful summer holiday! After College Entrance Examination, we are extremely delighted to invite you to our second round, [contest:1704], which will be held on [contest_time:1704]. **Note the unusual start time of the round.**You are given **8 problems** and **2.5 hours** to solve them. All problems were written and prepared by [user:Cirno_9baka,2022-07-23], [user:CoupDeGrace,2022-07-23], [user:Heltion,2022-07-23], [user:ODT,2022-07-23], [user:Yakumo_Ran,2022-07-23], [user:farmerj,2022-07-23], [user:flowerletter,2022-07-26], [user:izlyforever,2022-07-23], [user:kuangbin,2022-07-23], [user:mejiamejia,2022-07-23], [user:ugly2333,2022-07-23] and me. Task statements and editorials will also be available in Chinese (Simplified) and Chinese (Traditional) after the contest. We are sincerely thankful for the help provided by: - [user:3.141592653,2022-07-25], [user:emorgan5289,2022-07-25], [user:errorgorn,2022-07-25], [user:SevenDawns,2022-07-25], [user:pr...

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CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) Hello Codeforces, We are very glad to invite you to participate in [contest:1896], which will start on [contest_time:1896]. You will be given **8 problems** and **2.5 hours** to solve them. The round will be rated for everyone. All the problems are written and prepared by [user:lanhf,2023-11-22], [user:Mike4235,2023-11-22], [user:thenymphsofdelphi,2023-11-22], [user:xuanquang1999,2023-11-22] and me. We would like to give our sincere thanks to: - [user:errorgorn,2023-11-22] for his wonderful coordination! - [user:Alexdat2000,2023-11-22] for translating problem statements. - [user:Um_nik,2023-11-22] and [user:conqueror_of_tourist,2023-11-22] for Legendary Grandmaster testing. - [user:jeroenodb,2023-11-22], [user:Kuroni,2023-11-22], [user:dario2994,2023-11-22] and [user:dreamoon_love_AA,2023-11-22] for International Grandmaster testing. - [user:generic_placeholder_name,2023-11-22], [user:MofK,2023-11-22], [user:minhcool,2023-11-22], [user:dvdg6566,2023-11-22] and [user:mag...

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CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!) Hello, Codeforces! I'm very glad to invite you to participate in [CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!)](https://codeforces.me/contests/1810), which will start on [contest_time:1810].You will be given **8 problems** and **2 hours** to solve them. The round will be rated for everyone. I'd like to give my sincere thanks to: * [user:74TrAkToR,2023-03-29] for the wonderful coordination! * [user:Sulfox,2023-03-29] for the help with the statements. * [user:Suika_predator,2023-03-29], [user:SSerxhs,2023-03-29], [user:LLL_2820,2023-03-29], [user:xay5421,2023-03-29], [user:NemanjaSo2005,2023-03-29], [user:applese,2023-03-29], [user:bxhnb,2023-03-29], [user:fr200110217102,2023-03-29], [user:Sulfox,2023-03-29], [user:CCSU_DZX,2023-03-29] [user:PaperCloud,2023-03-29], [user:CedeaT0,2023-03-29], [user:Kath1031,2023-03-29], [user:jcccc,2023-03-29], [user:dyxg,2023-03-29], [user:tzc_wk,2023-03-29], [user:xiaoziya,2023-03-29], [user:qiqi20021026,2023-03-29], [user:Pointy,20...

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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!) Hello Codeforcers! ================== We are pleased to invite you to participate in [contest:1942]. This round will start on [contest_time:1942] and will be **rated for all participants**. There will be $8$ problems to be solved in $3$ hours, with one divided into two subtasks. Similar to [USACO](https://usaco.org/), you will help Farmer John and his cows resolve a series of first world problems. Be there or be square. This round was cooked up by [user:smax,2024-03-10], [user:sum,2024-03-10], [user:oursaco,2024-03-10], [user:cry,2024-03-13], and [user:buffering,2024-03-10]. We would like to thank the following people for making the round possible: - Our favorite cherry [user:TheScrasse,2024-03-10] for the wonderful and speedy coordination. - Our MVP testers, [user:Benq,2024-03-10], [user:Geothermal,2024-03-26], and [user:rainboy,2024-03-26], for dedicating so much time to reviewing problems, providing essential feedback, and perfecting the problemset. - The rest of ...

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CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!) Hello, Codeforces! Or, as we like to say in Romania: Nu îmi amintesc să fi adresat întrebări, Codeforces! I am glad to finally invite you to participate in [contest:1750], which will start on [contest_time:1750]. You will be given **8** problems and **2 hours and 30 minutes** to solve them. It is greatly recommended to read all the problems, **statements are short and straight to the point**. I would like to thank: - [user:Artyom123,2022-10-31] for prodigious coordination. - [user:AquaMoon,2022-10-31], [user:mejiamejia,2022-10-31], [user:ugly2333,2022-11-05], [user:Ecrade_,2022-10-31] for huge help in preparation and authoring one of the tasks. - [user:errorgorn,2022-10-31] for being a VIP-tester. - [user:Lemur95,2022-10-31], [user:Gheal,2022-10-31], [user:Perpetually_Purple,2022-10-31], [user:Everule,2022-10-31], [user:IacobTudor,2022-10-31], [user:andrei_boaca,2022-10-31], [user:lucri,2022-10-31], [user:AlperenT,2022-10-31], [user:Kuroni,2022-10-31], [user:pra...

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CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) ### Hello, Codeforces! [user:SomethingNew,2023-09-16] and I are glad to invite you to [contest:1870], which will take place on [contest_time:1870]. You will have 2 hours 15 minutes to solve 8 problems. The round will be rated for everyone. We would like to thank: - [user:74TrAkToR,2023-09-16] for coordinating this round. - [user:isaf27,2023-09-16], [user:ugly2333,2023-09-16], [user:DataStructures,2023-09-16], [user:Little09,2023-09-16], [user:bashkort,2023-09-16], [user:Kieray,2023-09-16], [user:fishy15,2023-09-16], [user:Vladithur,2023-09-16], [user:Dart-Xeyter,2023-09-16], [user:pakhomovee,2023-09-16], [user:makrav,2023-09-16], [user:meowcneil,2023-09-16], [user:127.0.0.1,2023-09-16], [user:Nanani,2023-09-16], [user:nnv-nick,2023-09-16], [user:SomethingDifferent,2023-09-17], [user:vl342,2023-09-16], [user:shiv_codegen,2023-09-17], [user:M1lkas,2023-09-16], [user:allmath,2023-09-16], [user:sdyakonov,2023-09-17] for testing the round and providing useful feedback. - [user:Mike...

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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!) কি অবস্থা ব্রো? আবারও চলে এসেছি! (That's Bengali for "What's up bro? I am back again!") I am super excited to invite you to participate in [contest:2039] which will be held on [contest_time:2039]. This round is rated for both divisions. The contest will feature $8$ problems, with three of them divided into two subtasks each. You will have $3$ hours to solve as many as you can. The problems are authored and prepared by me and [user:wuhudsm,2024-11-20]. I would like to thank - - [user:TheScrasse,2024-11-20] and [user:Kaey,2024-11-20] for their jaw-dropping (<strike>literally</strike>) coordination of the round, giving valuable feedback and improving lots of problems. - [user:wuhudsm,2024-11-20] for being kind enough to use one of his cool problems in the round. - [user:Alpha_Q,2024-11-20] and [user:Raiden,2024-11-20] for discussing tons of problems with me and improving some problems. - [user:antontrygubO_o,2024-11-20] for sacrificing his TON by not participating in the ro...

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Invitation to ‘Chingari’ CodeChef March Cook-Off (Rated for all) — 5th March ನಮಸ್ಕಾರ ಕೋಡ್‌ಫೋರ್ಸಸ್ (Hello Codeforces)! We invite you to participate in CodeChef’s [March Cook-Off](https://www.codechef.com/COOK139?utm_source=codeforces_blog&utm_medium=organic&utm_campaign=COOK139), this Saturday, 5th March, rated for all. Time: [8 PM &mdash; 10:30 PM IST](https://www.timeanddate.com/worldclock/fixedtime.html?msg=March+Cook-off+2022&iso=20220305T20&p1=44&ah=2&am=30). Note the [new schedule](https://blog.codechef.com/2022/02/28/were-celebrating-our-birthday-month-and-theres-some-exciting-news-for-you/). Web3 giant Chingari is onboard to pick their recruits in the areas of Machine Learning, Rust and Web3. These job openings are for Indians, and Non-Indians (who can work from home), and are experienced in any of the following: Rust, React, Golang,C/ C++, Python, Machine Learning, Deep Learning, Data Mining, Recommendation Systems etc. You’re also a desirable candidate if you have a deep understanding of the blockchain and cryptocurrency space and smart co...

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Teen Web3 & AI Conference @ Stanford Web3 and AI meet their future generation. ========================================= ###### _Note that for those who have signed up already, the date has changed and you must re-register_ ALPHAG3N, working with sponsors such as Coinbase, Solana Foundation, Jetlearn, and partners such as Stanford Blockchain Club, is the world’s largest high school Web3 and AI community, and we are looking for you to join us! On April 23rd, at Stanford University, we will be hosting a Web3 and AI conference for teen enthusiasts (age 13-19) from all backgrounds and inviting speakers such as Sanchan Saxena and Ejaaz Ahamadeen. Throughout the day, there will be a panel session for all participants and five workshops to choose from for those who join us (workshop leads to be announced soon). For in-person participants, there will be free food, merchandise, and $1000 in raffle prizes. More details can be found at [https://alphag3n.com/](https://alphag3n.com/). For those of you interested in Web3, AI, an...

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