参考 https://codeforces.com/blog/entry/84466 。
下文的 A/B 在 Mixed Contest 内出现，表示 A 这道题对应原比赛的 B，A/A 则会简写为 A。
目前还没整理完，鸽着。
XXII Open Cup
- Grand Prix of Dolgoprudny
- Source: Petrozavodsk Summer 2021, Day 7: MIPT Contest
- Upsolving Link: Baekjoon QOJ
- Material: Statement Tutorial Discussion
- Grand Prix of IMO
- Source: Petrozavodsk Summer 2021, Day 3: IQ test by kefaa2, antontrygubO_o, and gepardo
- Upsolving Link: Baekjoon QOJ
- Material: Statement Tutorial Discussion
- Grand Prix of XiAn
- Source: Petrozavodsk Summer 2021, Day 6: XJTU Contest
- Upsolving Link: Baekjoon Gym QOJ
- Material: Statement Tutorial (en) Tutorial (zh) F Tutorial (en) Discussion
- Hint: This contest is initially for 2021 Chinese HDU Multi-University Training 6, XJTU Contest. Some problems (E especially) are strengthened or modified. We supply the initial Chinese tutorial just for reference.
- Grand Prix of Korea
- Source: Mixed by 2021 KAIST 11th ICPC Mock Competition (A,C,D,E,G,H,J,K,L)，2021 서울대학교 프로그래밍 경시대회 - Division 1 (B/D,F,M/H)，暂时不知道 I 是哪来的，可能是原创？
- Upsolving Link: Gym
- Material: Disussion Statement Tutorial
- Grand Prix of Siberia
- Source: XXII All-Siberian Programming Contest. Online
- Material: Discussion Statement
- Grand Prix of EDG
- Source: CCPC 2021 Guilin
- Upsolving Link: Gym
- Material: Discussion Statement Tutorial (zh)
- Grand Prix of Southeastern Europe
- Source: Moscow International Workshops 2021, Day 2, based on SEERC 2021.
- Upsolving Link: Gym
- Material: Discussion Statement Tutorial
- Grand Prix of Poland
- Source: AMPPZ 2021, used as Moscow International Workshops 2021 Day 1.
- Material: Discussion Statement Tutorial
- Grand Prix of Nanjing
- Source: ICPC 2021 Nanjing
- Upsolving Link: Gym
- Material: Discussion Statement Tutorial (zh)
- Grand Prix of Kyoto
- Source: 京都大学プログラミングコンテスト 2021, used as Petrozavodsk Winter 2022 Day 1 Kyoto U Contest 2.
- Upsolving Link: Baekjoon QOJ
- Material: Discuss Statement Tutorial (Draft)
- Grand Prix of Daejeon
- Source: Petrozavodsk Winter 2022 Day 2 KAIST Contest + KOI TST 2021, mixed By The 3rd IDTcup (A/I,J/D)，2021 KAIST RUN Spring Contest (B/A,C/F,H/G,K/H,)，KOI2021 (D/D2T1,E/D2T2,F/D1T3,G/D1T2,I/D2T4)，Hello, BOJ 2022! (L/G).
- Upsolving Link: Baekjoon Gym QOJ
- Material: Discuss Statement Tutorial
- Grand Prix of Grushevka
- Grand Prix of Gomel