10TH ． 2026

Date
25th July, 2026 (Saturday)
Time
13:00 - 17:00 (Reporting time: 12:00)
Venue
LG2 School Hall, La Salle College
18 La Salle Road, Kowloon

Results

Champion: Diocesan Boys' School / Kwan Yung Ho / Ho Shun Ngai / Lok Chi Sum

Gold

  • Pui Ching Middle School (Macau) / Wang Ziyan / Ng Hang Chi / Lam Pok Hong
  • Wah Yan College, Kowloon / Xu Adam / Lung Ping Him / Tse Shun Yat
  • Pui Ching Middle School / Yim Chun Hei / Yam Po Sing / Zhou Regis

Silver (6 tasks or above)

  • Tsuen Wan Government Secondary School / Lo Ting Wai / Wong Ho Ki / Tsui Siu Fong
  • Kwun Tong Maryknoll College / Ng Pan / Hui Tin Chak / Chan Sze Ho
  • Wah Yan College, Hong Kong / Yang Chun Kit / Wong Chun Kit Matt / Li Junxi
  • St. Mark's School / Wong Cheuk Kiu / Chan Pak Hei / Yeung Ching Yin
  • Po Leung Kuk Choi Kai Yau School / Lo Freeman / Yung Michael Yui Jit / Hung Cheung Lok
  • Sing Yin Secondary School / Cheung Kin Sun / Huang Chi Ki Long / Yuen Cheuk Fung
  • Singapore International School (Hong Kong) / Li Honglin / Li Hongfei
  • Queen's College / Jiang Jingcheng Gordon / Chan Tsz Kiu / Fung Yau Him
  • Ying Wa Girls' School / Leung Hilary / Cheung Suet Nam / Chau Tsz Ying

Bronze (4 tasks or above)

  • Yan Oi Tong Tin Ka Ping Secondary School / Ho Man Kit / Chan Shing Yung
  • Carmel Pak U Secondary School / Ho Kai Hin / Sung Tsz Fung / Li Shing Cheung Neo
  • Buddhist Sin Tak College / Lam Pak Kiu Sean / Chan Cheuk Wing / Lee Wai Lam
  • STFA Leung Kau Kui College / Lau Tin Yiu / Luo Qihao / Liu Benjamin
  • Diocesan Girls' School / Zhang Tsz Ki / Cheung Ka Ling Angelina / Yan Yiqing Emma
  • Premier School Affiliated to Hou Kong Middle School / Chen Chio Cheong / Wong Chi Pang / Chan Tin Chak
  • Pui Kiu College / Oa Yang Yee Ching / Oa Yang Tsz Ching
  • La Salle College / Lee Sze Long / Kwok Chun Shing / Chan Cheuk Ting

Distinction (6 tasks or above)

  • Diocesan Boys' School / Hui Pak Yu / Zhen Yiu Dick Justin / Zhang Wai Ming
  • Wah Yan College, Kowloon / Xie Linghao / Wong Shun Long
  • Pui Ching Middle School / Cui Yu Xuan / Fong Ming / Ngan Ling Fung
  • Diocesan Boys' School / Wong Tsz Ho / Wong Pui Ho / Shek Nok Sun
  • Pui Ching Middle School / Pang Chi Yin Jovani / Tsang Hei Nok / Chan Tsz Hyun
  • Wah Yan College, Kowloon / Wong To Ho / Liu Zi Qiao Jonathan / Li Ching Shun
  • Diocesan Boys' School / Chan Cary Sirui / Li Haolin / Xia Weijun
  • Diocesan Boys' School / Bai Shijun / Luo Zicheng / Cheng Tin Yi

Merit (4 tasks or above)

  • Wah Yan College, Hong Kong / Lau Man Cheuk / Cheung Ngou Tin / Tang Cheuk Hang
  • STFA Leung Kau Kui College / Tang Tsz Hei / Li Zi Hao / Ho Yau Lok
  • Wah Yan College, Kowloon / Lee Tsun Yat / Ching Ho Yuen / Wu Pak Ngai
  • Diocesan Boys' School / Ng Sheung Yin / Cheng Ching Kiu / Lai Yau Chai
  • Ying Wa Girls' School / Law Yi Sheung / Man Cho Yan / Chan Yi Ching
  • Wah Yan College, Hong Kong / Cheung Chun Hei / Chan Pak Hong Ayden / Lai Ching Lok Godwin
  • Wah Yan College, Kowloon / Wong Hanson / Sun Jingzhe / Wong Yin Pok
  • Buddhist Sin Tak College / Chan Yu Ham / Chan Tsz Hang / Cheng Yat Long
  • STFA Leung Kau Kui College / Lai Yee Ching / Mo Anson / Tsoi Yuk Ning
  • Sing Yin Secondary School / Wong Chun Ming / Chen Ching Tsung / Lam Tsz Man
  • St. Mark's School / Leung Kwan Ho / Lung Wing Chung
  • Tsuen Wan Government Secondary School / Fok Kin Wing / Zhang Weixiang / Lam Long Yat
  • Sing Yin Secondary School / Ho Yau Kuen / Szto Yu Kit / Chen Chun Wang
  • Wah Yan College, Kowloon / Chan Cheuk Wing / Tam Shun Kan / Ting Tak Yin
  • Wah Yan College, Hong Kong / Lau Mo Chit Trevor / Chan Ting Hang / Cheung Ho Fung
  • Tsuen Wan Government Secondary School / Fung Hiu Nok / Lam Ho Wan / Ho Yam Pan
  • Ying Wa Girls' School / Ho Sze Yiu Kylie / Ho Wing Yan / Li Tsz Tung
  • Pui Ching Middle School (Macau) / Lao Cheok Fong / Sam I Hang / Wen Teng Hou
  • Tsuen Wan Government Secondary School / Lam Fung Yan / Li Wang Lok / Ma Tsz Tim
  • Yan Oi Tong Tin Ka Ping Secondary School / Fung Tsz Hin / Huang Kan Hin

Tasks

Solution

Photos

Rank Team (hover to see names) AC Pen A
21 / 32 / 90 		B
63 / 65 / 126 		C
16 / 31 / 78 		D
63 / 66 / 84 		E
1 / 3 / 6 		F
3 / 4 / 7 		G
0 / 4 / 19 		H
59 / 65 / 119 		I
47 / 57 / 171 		J
17 / 23 / 113 		K
27 / 41 / 111 		L
0 / 3 / 4
1 (G) 24 ok fire team name actually 9 635 150 2:10 / -1 7 0:07 25 0:25 11 0:11 196 3:16 -4 19 0:19 44 0:44 114 1:14 / -2 69 0:49 / -1
2 (G) 42 千早爱音驻泰拉 BMPT 部队 9 653 32 0:32 10 0:10 79 0:59 / -1 13 0:13 279 3:39 / -3 17 0:17 34 0:34 141 1:41 / -2 48 0:48
3 (G) 15 🐶🐲😱🥷 9 780 124 1:24 / -2 16 0:16 153 1:53 / -2 14 0:14 195 2:55 / -1 20 0:20 72 0:52 / -1 154 2:14 / -1 32 0:32
4 (G) 43 Polynomial Laplace Transform 9 830 138 1:58 / -1 16 0:16 89 1:29 17 0:17 253 3:53 / -2 22 0:22 28 0:28 230 2:50 / -3 37 0:37
5 (S) 41 TWGSS Sub Team 8 435 64 0:44 / -1 22 0:22 87 1:27 19 0:19 16 0:16 27 0:27 136 1:56 / -1 64 1:04
6 (S) 25 KTMC 8 552 28 0:28 22 0:22 54 0:54 25 0:25 34 0:34 46 0:46 183 2:23 / -2 160 1:40 / -3
7 (S) 32 Chris The Criminal X 犯罪者クリス 8 601 264 3:24 / -3 13 0:13 100 1:20 / -1 6 0:06 -7 27 0:27 43 0:43 125 2:05 23 0:23
8 (S) 23 セグメント木の墓守 8 665 241 3:01 / -3 7 0:07 50 0:50 13 0:13 -7 22 0:22 24 0:24 273 3:33 / -3 35 0:35
9 (S) 10 CKY STEM Team 8 701 164 2:44 35 0:15 / -1 144 2:04 / -1 19 0:19 25 0:25 65 0:45 / -1 181 3:01 68 1:08
10 (D) 255 DBS1 8 899 278 3:58 / -2 25 0:25 77 1:17 18 0:18 28 0:08 / -1 71 0:51 / -1 366 4:06 / -6 36 0:36
11 (D) 266 📌✍️💕🎨 8 1090 250 3:30 / -2 51 0:51 201 3:21 29 0:29 67 1:07 91 1:31 306 4:06 / -3 95 0:55 / -2
12 (S) 20 i cant decide on a name for plt 7 541 -7 39 0:19 / -1 169 2:09 / -2 11 0:11 23 0:23 31 0:31 211 3:31 57 0:57 -1
13 (D) 247 烽火長明軒然凌世 7 592 128 2:08 40 0:20 / -1 12 0:12 23 0:23 99 0:39 / -3 210 3:10 / -1 80 1:00 / -1
14 (S) 31 donut 7 596 238 3:38 / -1 43 0:23 / -1 144 2:04 / -1 12 0:12 29 0:29 37 0:37 93 1:13 / -1
15 (D) 273 ishowspeedsenior 7 653 101 1:41 41 0:21 / -1 -14 25 0:25 11 0:11 118 0:58 / -3 272 3:52 / -2 85 0:45 / -2
16 (D) 274 Uh 7 739 -1 12 0:12 261 3:41 / -2 17 0:17 -1 -1 -1 34 0:34 28 0:28 336 3:56 / -5 51 0:51 -1
17 (S) 22 ACGT 7 797 294 3:54 / -3 14 0:14 67 1:07 10 0:10 44 0:24 / -1 38 0:38 330 3:50 / -5
18 (D) 253 🙆🏻‍♂️🌲🧩⚫ 6 315 80 1:20 23 0:23 -6 19 0:19 -1 32 0:12 / -1 52 0:52 109 1:49
19 (D) 223 Extending the Distinction Streak 6 548 145 2:25 110 0:50 / -3 25 0:25 30 0:30 55 0:55 -5 183 2:03 / -3 -2
20 (S) 44 我看見培喇挑的AC很美，你呢？ 6 629 112 1:52 95 0:55 / -2 18 0:18 24 0:24 151 2:11 / -1 229 3:29 / -1
21 (D) 277 Extending the Merit Streak 6 711 238 3:38 / -1 18 0:18 38 0:38 51 0:31 / -1 59 0:59 307 3:47 / -4
22 (B) 45 キミとボクへの葬送歌 5 278 33 0:33 117 1:57 17 0:17 62 0:42 / -1 49 0:49 -32
23 (M) 227 我看見今晚的Code很美，你呢 ? 5 344 -4 101 0:41 / -3 6 0:06 24 0:24 81 1:01 / -1 132 2:12
24 (M) 231 說好梁中故事 5 434 37 0:37 48 0:48 57 0:57 111 1:51 -5 181 2:41 / -1
25 (M) 221 ⭕️🧜‍♀️🔓🐴 5 461 27 0:27 -2 34 0:34 43 0:43 152 2:32 205 2:05 / -4
26 (M) 241 DBS2 5 464 41 0:21 / -1 37 0:37 51 0:51 86 1:06 / -1 249 3:29 / -2
27 (M) 251 甕中之bit 5 522 347 3:07 / -8 27 0:27 20 0:20 16 0:16 112 1:52 -2
28 (B) 12 Clown, Potato, Ujala 5 532 -2 135 1:15 / -3 13 0:13 40 0:40 95 1:35 249 3:49 / -1 -4
29 (M) 213 Chris逃犯走唔甩 5 540 68 0:28 / -2 -3 12 0:12 62 1:02 175 1:15 / -5 223 2:03 / -5
30 (M) 235 ✖️🌬️💥🌊 5 560 37 0:37 6 0:06 54 0:34 / -1 240 2:20 / -5 223 3:03 / -2
31 (B) 21 培喇培跑份數 4 128 27 0:27 11 0:11 33 0:33 57 0:57 -7 -4
32 (B) 35 最是人間留不住 4 143 -2 20 0:20 -2 26 0:26 46 0:46 51 0:51 -4
33 (M) 234 培喇培跑份母 4 149 21 0:21 -10 10 0:10 31 0:31 87 1:07 / -1
34 (M) 225 修ICT唔代表識program 4 175 15 0:15 20 0:20 31 0:31 109 1:49
35 (B) 34 ჩვენ გვიყვარს კოდირება 4 176 -5 21 0:21 10 0:10 51 0:31 / -1 94 1:14 / -1
36 (M) 224 Sing Yin Stars 4 194 -2 50 0:50 -1 31 0:31 36 0:36 77 1:17
37 (M) 212 Discord Mods 4 198 38 0:38 19 0:19 35 0:35 106 1:46 -5
38 (M) 211 荃官 Offi・姐姐逆襲志文弟子戦隊二代 4 212 -1 39 0:39 27 0:27 45 0:45 101 1:41
39 (B) 33 Using Judger as Compiler 4 251 43 0:23 / -1 28 0:28 60 0:40 / -1 120 1:40 / -1 -9
40 (M) 267 #### 4 261 51 0:31 / -1 43 0:43 54 0:54 113 1:33 / -1 -2
41 (M) 271 💯🏹💯🀄 4 269 -11 18 0:18 29 0:29 79 0:59 / -1 143 1:43 / -2 -5
42 (B) 11 DevSibs 4 291 66 1:06 17 0:17 30 0:30 178 2:18 / -2
43 (M) 254 用Chlorine炸班房 4 312 142 2:02 / -1 93 1:13 / -1 20 0:20 57 0:37 / -1 -5
44 (M) 261 不是個位數就是零 4 324 -1 51 0:51 20 0:20 34 0:34 219 3:19 / -1 -8 -3
45 (M) 237 每日用15分鐘左右時間打code 4 326 50 0:50 13 0:13 56 0:56 207 3:07 / -1 -4
46 (M) 245 無隊名 4 400 57 0:17 / -2 24 0:24 37 0:37 282 3:22 / -4
47 (M) 275 所以才有這麼高的素質 4 409 26 0:26 -1 33 0:33 77 0:57 / -1 273 2:33 / -6 -2
48 (M) 232 YOTTKPSS2 4 426 38 0:38 -1 94 1:34 95 1:15 / -1 -7 199 2:59 / -1
49 (B) 26 The only 喇 in 培喇挑 4 474 44 0:24 / -1 -3 12 0:12 122 1:22 / -2 296 1:56 / -9
50 (-) 264 Lemon Milk Tea 3 95 27 0:27 -2 35 0:15 / -1 33 0:33 -8
51 (-) 14 PLKNO1 3 169 69 1:09 -1 38 0:38 62 1:02 -4 -2 -3
52 (-) 244 非洲雞是澳門具代表性的澳葡地道名菜 3 189 52 0:52 -1 32 0:32 105 1:05 / -2 -9 -1
53 (-) 13 太宏偉啦 3 208 62 1:02 67 1:07 79 0:59 / -1 -13
54 (-) 257 WA 到嘴邊打住 3 252 -4 77 1:17 14 0:14 161 2:21 / -1 -10
55 (-) 217 🐷👬🐶🈶 3 261 127 1:07 / -3 38 0:38 96 1:16 / -1 -7 -3
56 (-) 214 Error 3 264 28 0:28 98 0:58 / -2 138 1:38 / -2 -4
57 (-) 252 Sing Yin DeepSeek 3 284 98 1:38 43 0:43 143 2:03 / -1
58 (-) 243 下定決心 回復 Wrong An 都不覺荒涼 3 402 31 0:31 25 0:25 346 4:06 / -5
59 (-) 236 少壯不打code 老大徒傷悲 2 176 55 0:55 121 2:01 -3
60 (-) 263 九唔搭八 2 185 99 1:39 -4 -7 86 1:26 -6
61 (-) 233 試圖用意念寫出程式 2 195 56 0:56 139 1:39 / -2 -8
62 (-) 276 LKKC Team 666 2 409 266 2:06 / -7 -1 143 2:03 / -1 -13
63 (-) 265 sohcahtoa 1 54 54 0:54 -6
64 (-) 256 K4nn0n F0dd3rz! 1 94 -7 94 1:14 / -1
65 (-) 215 no more 67! 1 219 219 1:59 / -5 -6 -2
-- 222 荔天皇家保安隊 0 0 -16 -1 -1

Latest News

  • Reminder: Each team must bring a laptop with all necessary software pre-installed and set up. During the competition, it is not allowed to access the internet or use online IDEs. Participants should familiarize themselves with how to implement, compile and run programs on the operating system of their choice.
  • Application results have been released. List of participating schools:
    SchoolOfficialSub-team# Students
    Buddhist Sin Tak College127
    Carmel Pak U Secondary School103
    Diocesan Boys' School1619
    Diocesan Girls' School115
    Kwun Tong Maryknoll College103
    La Salle College103
    Lai King Catholic Secondary School127
    N.T. Heung Yee Kuk Yuen Long District Secondary School103
    Po Leung Kuk Choi Kai Yau School103
    Po Leung Kuk No.1 W.H. Cheung College103
    Premier School Affiliated to Hou Kong Middle School103
    Pui Ching Middle School1312
    Pui Ching Middle School (Macau)116
    Pui Kiu College102
    Queen's College128
    Singapore International School (Hong Kong)102
    STFA Leung Kau Kui College1414
    Sing Yin Secondary School1311
    St. Mark's School128
    Tsuen Wan Government Secondary School1621
    Wah Yan College, Hong Kong1312
    Wah Yan College, Kowloon1620
    Yan Oi Tong Tin Ka Ping Secondary School114
    Ying Wa Girls' School1415
    Total2446194
  • Website for the 10th La Salle — Pui Ching Programming Challenge is now online.
  • You may find some sample tasks HERE.
  • Codeforces Gym: 9th (2025) 8th (2024) 7th (2023) 6th (2022) 5th (2021) 4th (2019) 3rd (2018), 2nd (2017), 1st (2016)

    • Rules

    • This is a team contest for secondary school students. Each team shall consist of 2 to 3 students from the same school. Each school can send at most two 2-person teams.
    • Each school can nominate 1 official team and unlimited number of sub teams.
    • There will be 10 to 12 tasks, with no subtasks. Teams shall solve as most tasks as possible in 4 hours.
    • Members within a team may communicate with each other, but not with other teams.
    • Each team may only use 1 laptop. Teams must bring their own laptop. There will be no backup laptops.
    • Teams may bring and use unlimited amount of non-electronic reference books and notes.
    • Teams must not use any previously written code. Teams may only use basic document processing and software development software.
    • The allowed programming languages are C++17 and Python 3. Pascal and C are no longer allowed.
    • A verdict, either Accepted, Wrong Answer, Time Limit Exceeded, Runtime Error, or Compilation Error, will be given to each submission. Teams will not receive detailed results of each test.
    • Wrong Answer, Time Limit Exceeded, Runtime Error are regarded as Rejected.
    • The ranking will be made available to the teams, except during the last hour.
    • Each team may print not more than 10 pages of PDF documents.

    Ranking and Awards

    • Teams are ordered by number of solved tasks, followed by the Penalty Time.
    • Calculation of Penalty Time
      • No Penalty Time for Unsolved tasks
      • The Penalty for a solved task is the number of minutes past the beginning of the contest that it is solved, plus the number of Rejected submissions multipled by 20 minutes.
      • The total penalty time is the sum of the Penalty Times of each task.
    • The 1st place official team will win the La Salle — Pui Ching Programming Challenge Cup.
    • The 1st - 4th place teams will win the Gold award.
    • The remaining official teams that solves a certain number of tasks (TBA) will win the Silver award.
    • The remaining official teams that solves a certain number of tasks (TBA) will win the Bronze award.
    • The sub teams that solves a certain number of tasks (TBA; same as Silver) will win the Distinction award.
    • The remaining sub teams that solves a certain number of tasks (TBA; same as Bronze) will win the Merit award.

    Apply

    • Closed

    Other Notes

    • All contestants must wear proper school uniform. Team uniform, PE uniform, house tee, class tee etc are also acceptable but it must be consistent within a team.
    • Tasks will only be available in English.
    • There will be tasks of various difficulty in no particular order.
    • Laptop requirements: 802.11a/b/g/n/ac to connect to the contest network. Charger cable of at least 2.5 meters.
    • Peripheral keyboard and mouse are allowed. External displays are not allowed.
    • Teachers may spectate inside the venue.
    • The organiser will arrange photo-taking and video recording for promotional purposes.
    • Enquiries: <>

    Previous contests: 9th (2025) 8th (2024) 7th (2023) 6th (2022) 5th (2021) 4th (2019) 3rd (2018) 2nd (2017) 1st (2016)