2023 Taiwan Online Programming Contest

Latest News

Contest Materials

• Problem Description
• Visit CodeForces Gym for upsolving
• Sample code
• Enhanced test data: A B C D E F G H I J K L
• Solution sketch

Final Standings

2023/09/15

• 如教練無法安排監賽人，賽程中需對所有電腦桌面連同開發程式時的語音進行錄影， 必要時提供給主辦單位檢視。如屆時無法提供錄影錄音，將被取消資格。

• If your coach cannot appoint a proctor, then you have to record all screens of your computers during the contest. In addition, you must record the video with voice. We might ask you to provide the video clips for review when necessary. If you cannot provide the demand video, it may result in immediate disqualification.

• 錄影軟體可使用 OBS Studio 或是類似功能之軟體。
• You may use OBS Studio or similar software to record the video.

2023/09/13

• 裁判系統資訊已更新。
• We have updated the judge environment.
• 裁判系統帳號密碼資訊已寄發給教練與隊員。
• We have delivered the team account information to the coaches and the contestants.

Overview

1. 日期 Date
   2023 年 9 月 16 日 星期六
   Saturday, September 16, 2023
2. 地點 Place
   線上 Online
3. 競賽時間 Contest Time
   早上九點至十二點 (三小時)
   From 9:00 AM to 12:00 Noon (3 hours)
4. 題組 Problem Set
   總題數至少七題，所有題目均為英文，三分之一可由 Python 3 解出。 因 ICPC 區賽選拔規則 與 晉級世界決賽規則有重大變更，將至少有一個題目與相關規則有關。
   There will be at least 7 problems to be solved. The description of each problem will be available in English. At least one third of them are solvable in Python 3. Due to major changes in ICPC team selection, there will be at least one problem related to the Taoyuan regional team selection rule or the Asia Pacific rules.
5. 報名 Registration
   請使用 ICPC 官方網頁註冊：
   https://icpc.global/regionals/finder/Taiwan-Online-2024
   Please visit the official website of the ICPC:
   https://icpc.global/regionals/finder/Taiwan-Online-2024
6. 報名期限 Registration Deadline
   2023 年 9 月 7 日 星期四 Thursday, September 7, 2023

Eligibility

• 基本資格規範 Basic Eligibility Rules
  請參照 ICPC 官方規範(連結) 中關於 Basic Eligibility Requirement 一節。
  The eligibility rules are contained in the official regional rules on the ICPC website. See “Basic Eligibility Requirement” section.

• 隊伍組成 Team Composition
  每隊由一名教練、三名參賽隊員、至多一名候補隊員組成。 教練為參賽學校之教職員，並獲學校授權，必須負責證實參賽隊員資格， 並負責與主辦方聯繫。參賽隊員與候補隊員需要滿足 ICPC 官方規範， 不可擔任教練。
  Each team must have a coach, three contestants and at most one reserved team member. The coach must be authorized to represent the school. The coach certifies the eligibilities of the contestants and is the official point-of-contact. All contestants and reserved team member must satisfy the ICPC official rules. None of them may serve as a coach.

Ethics

參賽者應尊重對手，遵守規則，爭取個人、隊伍、學校的榮耀，維護社群的名譽。
Contestants shall respect their opponents. Contestants shall abide the rules. Contestants shall compete for the honor of themselves, of their teams, and of their schools. Contestants shall not compromise the reputation of the society of competitive programming.

Rules

賽前教練需上傳表格保證該隊伍遵照規則進行比賽。 如違反下列規則，將導致參賽者失去參賽資格。
The coach has to submit a form to declare that the team abides by the rules during the contest. Contestants will be disqualified if they violate the following rules.

1. 不得使用機器可讀的資料 No machine-readable preparation
   不得使用任何機器可讀的資料，如預先寫好存放於電腦中的程式碼。 但可以使用紙本資料，如教科書、字典、筆記以及列印好的紙本程式碼。
   No machine-readable materials (e.g., source codes, templates, etc.) are allowed. However, paper-based materials, such as textbooks, dictionaries, printed notes, etc., are allowed.
2. 僅與隊友接觸 Only contact teammates
   在比賽過程中，參賽者只能與隊友討論。 競賽期間與教練或其他隊伍聯繫均屬違規行為。
   Contestants are allowed to contact only their teammates during the contest. Contestants shall not discuss with their coach and other teams.
3. 網路使用限制 Limited accesses
   參賽者只能夠透過網路下載題目敘述、上傳解答程式碼、提問澄清疑點與查看計分板。 使用網路存取其他資訊均屬違規。
   Contestants shall access the internet only for downloading the problem description, submitting source codes, requesting problem clarification and checking the scoreboard. Any other type of internet access is prohibited.
4. 限用一台電腦 One computer
   每個隊伍僅可使用一台電腦撰寫程式與上傳程式碼。 於競賽期間除使用印表機列印題目與程式碼以及透過額外的螢幕閱讀題目之外， 不得使用任何其他電子裝置。
   Each team shall not use more than one computer to write programs during the contest. Contestant shall not use any other type of electronic devices, except extra monitors and printers.
5. 禁止惡意行為 No malicious actions
   不得做出任何意圖妨礙比賽進行及影響比賽公平性的惡意行為。
   All malicious actions interfering the contest are prohibited.

Scoring & Ranking

• 計分與排名 Scoring & Ranking
  隊伍以解題數量多者排名較前，解題數量相同時，以總消耗時間少者排名較前。 答對的題目的消耗時間計算方式為比賽開始至解出題目所消耗的分鐘數。 如解出前有答錯，除編譯錯誤之外，每答錯一次需要另加 20 分鐘。 總消耗時間為所有答對題目的消耗時間加總。未答對的題目不計消耗時間。
  Teams are ranked according to the most problems solved. Teams who solve the same number of problems are ranked by least total time. The total time is the sum of the time consumed for each problem solved. The time consumed for a solved problem is the time elapsed from the beginning of the contest to the submittal of the accepted run plus 20 penalty minutes for every rejected run for that problem that was not rejected due to Compilation Error. There is no time consumed for a problem that is not solved.

• 平手判定 Tie-Breaker
  解題數與消耗時間均相同時，以先答對最後一題者獲勝。
  If multiple teams have the same number of problems solved and total time, then the winner goes to the team which first submitted their last accepted solution.

Important Dates

• 註冊截止日期：
  2023 年 9 月 7 日
  End of registration: September 7, 2023

• 寄發隊伍帳號密碼：
  2023 年 9 月 14 日寄發給教練
  Team account information will be delivered to the coach by September 14, 2023.

• 暫定測試時間：
  2023 年 9 月 15 日 下午十二點三十分至十一點三十分 (台灣時間)
  Tentative practice session: 12:30-23:30 on September 15, 2023 (GMT+8)
  

• 競賽時間：
  2023 年 9 月 16 日 上午九點至中午十二點 (台灣時間)
  Contest time: 9:00-12:00 on September 16, 2023 (GMT+8)

Judge Environment

Hardware

AWS t2.small instance

OS

Ubuntu 20.04

Compiler/Runtime Environment/Interpreter

• C: gcc 11.4.0
• C++: g++ 11.4.0
• Java: OpenJDK 17.0.8.1
• Python: 3.8.10
• Kotlin: 1.5.21 or later on JRE 17.0.8.1

Flags

• C: gcc-11 -x c -Wall -O2 -static -pipe -o "$DEST" "$@" -lm
• C++: g++-11 -x c++ -std=gnu++20 -Wall -O2 -static -pipe -o "$DEST" "$@"
• Java: java -Dfile.encoding=UTF-8 -XX:+UseSerialGC -Xss${MEMSTACK}k -Xms${MEMLIMITJAVA}k -Xmx${MEMLIMITJAVA}k '$MAINCLASS' "$@"
• Kotlin: kotlin -Dfile.encoding=UTF-8 -J-XX:+UseSerialGC -J-Xss${MEMSTACK}k -J-Xms${MEMLIMITJAVA}k -J-Xmx${MEMLIMITJAVA}k '$MAINCLASS' "$@"

Lazy Evaluation

The result of a rejected submission is the first encountered error. We do not prioritize timelimit, run-error, memory-limit, output-limit and no-output.

Penalty

There is no penalty on compilation errors.

Contact

Contest Managers: mzshieh@nycu.edu.tw