hehezhou's blog

By hehezhou, history, 12 months ago, In English

Hello Codeforces!

We are excited to invite you to compete in the California Informatics Competition (CALICO) Spring '23! The contest will take place on Saturday, April 8, 2023 from 4:00 p.m. to 6:30 p.m. Pacific Time. Registrations are now open and will be until Thursday, April 6, 2023 at 11:59 p.m. Pacific Time, so register here while you can! The contest will take place virtually on our custom judge platform.

The California Informatics Competition (CALICO) is a semiannual team programming contest organized by students at the University of California, Berkeley. We create original problems to encourage students to grow their problem-solving skills and learn algorithms in fun and exciting ways. Check out our website to learn more about the contest and join our discord server to get announcements, make teams, hang out, and more!

The contest will be 2.5 hours long and you can compete solo or in a team of up to 3. There will be around 8 problems spanning a wide range of difficulty for all skill levels. Some problems will have bonus test sets, where more efficient or advanced solutions can earn additional points. At least one of the problems will be interactive. Anyone can compete in the contest, but only pre-college teams will be eligible to win prizes. Editorials for each problem will also be available after the contest. More details will be released as the contest date approaches.

These awesome problems and editorials are written, prepared, and tested by the CALICO Team, including Bungmint, plourde27, yjp20, TheKingAleks, ss1237, bradley.louie1, fatant, KradecaNaLukcheta, mudkip, alfphaderp, voidcs, vcivek, skywire2000, and many more!

We’ve had a ton of fun creating these problems! We think there will be something interesting for everyone, regardless if you’re totally new or an experienced competitor.

Good luck on the contest!

Link to English flyer | Chinese flyer

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By hehezhou, history, 12 months ago, In English

Hi everyone,

X-Camp Academy will organize the USACO US Open2023 contest solution live explanation section on Mar 28th. This time, we will also analyze and summarize the trends of the whole 22/23 season. If you took the contest over the weekend, or you are interested in USACO's last contest, don’t miss the opportunity.

A brief introduction to X-Camp.

A silicon valley based institute focusing on foundation buildup for the majority of students, and competitive programming for students who are passionate about competitions are committed.

Systematic curriculum from beginner to master class level.

5 students entered US National Camp in the past two years.

3 students from USACO Grandmaster Class (CS603) are out of the top 10 of Platinum Division in Dec 2022.

6 students passed Gold into the Platinum division in Dec and Jan contest.

150+ students in USACO Silver, Gold levels.

Date and Time:

Mar 28th (Tue), 6:00 PM — 6:45 PM (PDT) — USACO Bronze Solution Explanation

Mar 28th (Tue), 6:45 PM — 7:30 PM (PDT) — USACO Silver Solution Explanation

Mar 28th (Tue), 6:30 PM — 7:30 PM (PDT) — USACO Gold Solution Explanation (Zoom)

Instructors:

Host: Yuan, X-Camp Co-founder, leading X-Camp teaching team

Bronze Level — X-Camp Platinum Division Student or higher level, Bay Area local student

Silver Level — X-Camp USACO Grandmaster Class level's coach + teacher, UCB EECS Major

Gold Level — X-Camp USACO Grandmaster Class level's coach, ICPC World Finalist

Agenda:

1) Live solutions — 40 — 50 mins

2) Q&A with instructors — 10 mins

Youtube link: https://www.youtube.com/@xcampacademy

USACO this season’s Livehttps://www.youtube.com/@x-campacademy3218/streams

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By hehezhou, history, 13 months ago, In English

Hi everyone,

X-Camp Academy will organize the USACO Feb 2023 contest solution live explanation section on Feb 28th. If you took the contest over the weekend, or you are interested in USACO, don’t miss the opportunity.

A brief introduction to X-Camp.

  • A silicon valley based institute focusing on foundation buildup for the majority of students, and competitive programming for students who are passionate about competitions are committed.
  • Systematic curriculum from beginner to master class level.
  • 5 students entered US National Camp in the past two years.
  • Many more students in USACO Silver, Gold levels.
  • 2 students from USACO Grandmaster Class (CS603) are out of the top 10 of Platinum Division in Dec 2022.
  • 6 students passed Gold into Platinum division in Dec and Jan contest.

Date and Time:

Feb 28th (Tue), 6:00 PM — 6:45 PM (PST) — USACO Bronze Solution Explanation

Feb 28th (Tue), 6:45 PM — 7:30 PM (PST) — USACO Silver Solution Explanation

Feb 28th (Tue), 6:30 PM — 7:30 PM (PST) — USACO Gold Solution Explanation (Zoom)

Instructors:

Host: Yuan, X-Camp Co-founder, leading X-Camp teaching team

Bronze Level — X-Camp Platinum Division Student or higher level, Bay Area local student

Silver Level — X-Camp USACO Grandmaster Class level's coach + teacher, UCB EECS Major

Gold Level — X-Camp USACO Grandmaster Class level's coach, ICPC World Finalist

Agenda:

1) Live solutions — 40 — 50 mins

2) Q&A with instructors — 10 mins

Youtube link: https://www.youtube.com/@xcampacademy
USACO this season’s Live — https://www.youtube.com/@x-campacademy3218/streams

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By hehezhou, history, 14 months ago, In English

Hi everyone, X-Camp Academy will organize USACO Jan 2023 contest solution live explanation section tomorrow night (Jan 31st). If you took the contest over the weekend, or you are interested in USACO, don’t miss the opportunity!

A brief introduction to X-Camp.

  • A silicon valley based institute focusing on foundation buildup for the majority of students, and competitive programming for students who are passionate about competitions are committed.
  • Systematic curriculum from beginner to master class level. 
  • 5 students entered US National Camp in the past two years.
  • Many more students in USACO Silver, Gold levels.
  • 2 students from USACO Grandmaster Class (CS603) are out of the top 10 of Platinum Division in Dec 2022.

Date and Time: 

  • Jan 31st (Tue), 6:00 PM — 6:45 PM (PST) — USACO Bronze Solution Explanation 
  • Jan 31st (Tue),  6:45 PM — 7:30 PM (PST) — USACO Silver Solution Explanation 
  • Jan 31st (Tue), , 6:30 PM — 7:30 PM (PST) — USACO Gold Solution Explanation (Zoom)

Speakers: 

Host: Yuan, X-Camp Co-founder, leading X-Camp teaching

Bronze Level — X-Camp Platinum Division Student or higher level, Bay Area local student 

Silver Level — X-Camp USACO Grandmaster Class level's coach + teacher, UCB EECS Major

Gold Level — X-Camp USACO Grandmaster Class level's coach, ICPC World Finalist

Agenda:

1) Live solutions — 30-40 mins 

2) Q&A with our top coach — 10 — 15mins

Youtube link:

https://www.youtube.com/@xcampacademy

USACO Dec 2022 Live link:

https://www.youtube.com/@x-campacademy3218/streams

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By hehezhou, history, 14 months ago, In English

Hi everyone,

X-Camp Academy will provide a free USACO Mock test on Jan 21st, 4 PM-8 PM pacific time. Open to all, free.

A brief introduction to X-Camp (x-camp.org): A silicon valley based institute focusing on foundation buildup for the majority of students, and competitive programming for students who are passionate about competitions. Systematic curriculum from beginner to master class level. Nearly 20 USACO Platinum division contestants in the past 2 years. 5 students entered US National Camp in the past two years and two current students are among the top 10 from 22/23 Season Dec Platinum Division. 

Some highlights: 

a. Problems arranged by X-Camp Academy teaching research team and catching the newest USACO problem trends.

b. Simulation of a real competition environment. Best preparation for what’s to be expected for the coming USACO contest in late Jan (Jan 27 to Jan 30).

c. Covering Bronze to Platinum levels.

Registration Link: https://docs.google.com/forms/d/e/1FAIpQLSdk77nTSw4Ebs59Kt_Ue9o7Kwd9i9uR36wA6qXG_4eHYE1xqQ/viewform

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By hehezhou, history, 15 months ago, In English

Hi everyone, X-Camp Academy will organize USACO 2022/2023 December contest solution live explanation section based on zoom on December 20 Tuesday. If you took the contest over the weekend, or you are interested in USACO, don’t miss the opportunity!

A brief introduction to X-Camp. A silicon valley based institute focusing on foundation buildup for the majority of students, and competitive programming for students who are passionate about competitions are committed. Systematic curriculum from beginner to master class level. Nearly 20 USACO Platinum division contestants in the past 2 years. 5 students entered US National Camp in the past two years. Many more students in USACO Silver, Gold levels.

Date and Time: Dec 20th (Tue), 6:00 PM — 6:45 PM (PST) — USACO Bronze Solution Explanation Dec 20th (Tue), 6:45 PM — 7:30 PM (PST) — USACO Silver Solution Explanation Dec 20th (Tue), 6:30 PM — 7:30 PM (PST) — USACO Gold Solution Explanation

Speakers: Host: Yuan, X-Camp Co-founder, leading X-Camp teaching Bronze Level — X-Camp Platinum Division Student or higher level, Bay Area local student Silver Level — X-Camp USACO Grandmaster Class level's coach + teacher — ICPC World Finalist Gold Level — X-Camp USACO Grandmaster Class level's coach, ICPC World Finalist

Agenda: 1) Live solutions — 30mins 2) Q&A with our top coach — 15mins

Youtube link: https://www.youtube.com/@x-campacademy3218/featured Please wait on Youtube until live solutions start(12/20 6:00)~

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By hehezhou, history, 23 months ago, In English

Hey everyone,

Here's an invitation for all programming lovers to participate in the 4th Turing Cup competition!

The Turing Cup is an invitational competition that is organized by one of the most successful informatics competition teams in China, the XinYouDui, and X-Camp.

Several top students of XinYouDui: Chao Li (IOI 2012 Gold Medalist);Yinzhan Xu (IOI 2014 Individual 1st place winner);Ce Jin (IOI 2016 Individual 1st place winner):

Top contestants such as IOI Gold medalists, and other top CPers joined the past contest as well.

The 4th Turing Fun cup is open for registration, come and code with us!

Registration link (No Registration Fee)

Novice Group: We'd recommend programmers who have completed learning the language and basic algorithms and who are in USACO silver division, are eligible to participate.

Intermediate Group: This level is for contestants with skills in applying basic data structures and common algorithms to solve problems. Recommended contestants who are in the USACO Gold division are eligible to register.

Advanced Group: This level is for contestants with skills in advanced data structures and algorithms to solve complex problems. Recommended for contestants who are in the USACO Platinum division/ US Camp to register.

Contest Time: Event time link:Saturday,5/14/2022, 6:00:00 PM PDT.

FAQ:

Q: What kind of info does the registration need?

A: Full Name, Email, School, DOB

Q: What will the prizes be?

A:

  • 1st place: Macbook Air;

  • 2nd-6th ranklist, Cherry Mechanical Keyboard;

  • 7th to 21st ranklist: DuSmart Speaker.

  • Novice Group: awards are only eligible for players born after January 1, 2010

  • Intermediate Group: awards are only eligible for players born after January 1, 2008

  • Advanced Group: no age restriction

Q: How to join the contest?

A: You can participate directly by clicking the link in your browser (Chrome, Firefox recommended) during the contest window. When you log in to the system, the problems will show up based on the division you choose.

Q: How can I view the real-time rank list during the contest?

A: Click the link below to check the rank list, you could check different groups' rank lists.

Q: More questions?

A: For Participants, feel free to join the official Discord channel or please email us: [email protected] (in English), or [email protected] (in Chinese).


【UPD】

Hi everyone, thanks for participating the 4th Turing Cup competition! We hope that you enjoyed the competition! And thanks everyone for attending the competition, thanks our sponsor Hundsun Technologies Inc., and thanks everyone who supported the competition!

We strive to provide high quality of problems and smooth competition experience for everyone. Any feedback is more than welcome! Please help us fill out the survey below.

Survey Link

We will upload the videos of the opening ceremony and analysis of problem in XinYouDui WeChat official account, X-Camp Academy YouTube channel. We will also update the status here once the videos are posted.

Please use the next 24 hours for dispute for the competition results. Please email your dispute to [email protected] (in English) with the subject: 4th Turing Cup score dispute.

The winners of the competition will be finalized in around 30 hours once we resolve all disputes, and finish code deduplication. Winners will be announced on the XinYouDui WeChat official account, X-Camp WeChat public account and Discord channel.

For the winners, staff will contact you by email to verify your identity and ask for your recipient's address.

Please see tutorials below.

Here is the upsolve link for The 4th Turing Cup.

We will follow up with another post for the final results of the competition and announce the winners officially!

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Announcement of The 4th Turing Cup
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